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SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY • NUMBER 215

A Review of the Genus Horama Hübner and Reestablishment of the Genus Poliopastea Hampson (Lepidoptera: Ctenuchidae)

Robert E. Dietz IV and W. Donald Duckworth

SMITHSONIAN INSTITUTION PRESS

City of Washington

1976

A B S T R A C T

Dietz, Robert E., IV, and W. Donald Duckworth. A Review of the Genus Horama Hübner and Reestablishment of the Genus Poliopastea Hampson (Lepidoptera: Ctenuchidae). Smithsonian Contributions to Zoology, number 215, 53 pages, 29 figures, 3 plates, 4 maps, 1976.—The ctenuchid genus Horama is reviewed and one new species described. A key to the species is provided. The history and classification of the genus are discussed in detail. All the species of Horama are reviewed regarding their taxonomic history, distribution, identity, known biology, and morphology. Distribution maps, photographs of the adults, drawings of the male and female genitalia, wing venation, and other aspects of the morphology are included. In addition, the genus Poliopastea is reestablished and a number of species transferred to it from other genera. The genus is characterized and included species are listed with data given regarding synonyms, type-localities, and type depositions.

OFFICIAL PUBLICATION DATE is handstamped in a limted number of initial copies and is recorded in the Institution’s annual report, Smithsonian Year. SI PRESS NUMBER 6075. SERIES COVER DESIGN: The coral Montastrea cavernosa (Linnaeus).

Library of Congress Cataloging in Publication Data
Dietz, Robert Edwin, 1941–
A review of the genus Horama Hübner and reestablishment of the genus Poliopastea Hampson (Lepidoptera: Ctenuchidae).
(Smithsonian contributions to zoology; no. 215)
Supt. of Docs. no.: SI 1.27:215

1. Horama. 2. Poliopastea. 3. Insects—Classification. I. Duckworth, W. Donald, joint author. II. Title: A review of the genus Horama Hübner. III. Series: Smithsonian Institution. Smithsonian contributions to zoology; no. 215.

QL1.S54 no. 215 [QL561.C8] 591′.08s [595.7′71] 75-619172

Contents

Introduction

Acknowledgments

Classification

Group I

Group II

Group III

Checklist for Horama Species

Genus Horama Hübner

Key to Species of Horama

Horama pretus (Cramer)

Horama grotei Butler

Horama panthalon panthalon (Fabricius)

Horama panthalon texana (Grote), new status

Horama panthalon viridifusa (Schaus), new combination, new status

Horama tarsalis Walker

Horama pennipes (Grote)

Horama plumipes (Drury)

Horama diffissa Grote

Horama zapata, new species

Horama oedippus (Boisduval)

Reestablishment of the Genus Poliopastea Hampson

Genus Poliopastea Hampson

Poliopastea anthracina (Klages), new combination

Poliopastea auripes (Walker), new combination

Poliopastea chrysotarsia (Hampson), new combination

Poliopastea clavipes (Boisduval), new combination

Poliopastea coelebs Bryk

Poliopastea cyanescens (Dognin), new combination

Poliopastea cyllarus (Druce), new combination

Poliopastea errans (Hübner), new combination

Poliopastea esmeralda (Butler), new combination

Poliopastea evelina (Druce), new combination

Poliopastea hesione (Druce), new combination.

Poliopastea indistincta (Butler), new combination..

Poliopastea jalapensis (Schaus), new combination

Poliopastea laciades (Schaus), new combination ...

Poliopastea laconia (Druce), new combination

Poliopastea lamprosoma (Hampson), new combination

Poliopastea maroniensis (Schaus), new combination

Poliopastea mirabilis (Draudt), new combination

Poliopastea nigritarsia (Hampson), new combination

Poliopastea nordina (Schaus), new combination

Poliopastea obscura (Wallengren), new combination

Poliopastea plumbea Hampson

Poliopastea pusilla (Butler), new combination

Poliopastea splendida (Butler), new combination

Poliopastea vittata (Walker), new combination

Literature Cited

Plates

Publication in Smithsonian Contributions to Zoology

A Review of the Genus Horama Hübner and Reestablishment of the Genus Poliopastea Hampson (Lepidoptera: Ctenuchidae)

Robert E. Dietz IV and W. Donald Duckworth

____________

Robert E. Dietz IV, Department of Entomological Sciences, University of California, Berkeley, California 94720. W. Donald Duckworth, Department of Entomology, National Museum of Natural History, Smithsonian Institution, Washington, D.C. 20560.

Introduction

Comparatively little attention has been paid by lepidopterists to the day-flying moths in the family Ctenuchidae ( = Syntomidae, =Amatidae). Considering their moderate size, their remarkable mimetic patterns, and their abundance in the tropical regions of the world, it is surprising how little is known of their biologies and phyletic affinities. Most larval and pupal stages, as well as the host-plant associations, are unknown. Various observers (Seitz, 1890; Schrottky, 1909, 1911) have commented on the significance of the mimetic resemblance of many of the ctenuchids to certain Hymenoptera. Aside from the comprehensive treatments of the Palearctic genus Amata (Obraztsov, 1966) and the Madagascar ctenuchids (Griveaud, 1964, 1969), the majority of the taxonomic work on ctenuchids has been confined to species descriptions with generic placement often being determined by similarity in external appearance rather than by comparative morphological and biological studies. The result has been that many genera contain species which superficially appear similar due to mimetic relationships with the same or similar hymenopteran models but which, in fact, are unrelated when more conservative characters are examined. Conversely, in some species such as H. p. viridifusa (Schaus), it appears that one species with two distinct morphs may represent a mimetic association with several different models.

The ctenuchids are presently divided into three subfamilies (Forbes, 1939) on the basis of differences in the venation of the hind wing. The Amatinae are limited to the Old World and except for a few African species have R and M fused in the hind wing. The Euchromiinae occur in both the Old and New Worlds and have M_2 absent or rudimentary and Cu_1 and Cu_2 stalked or united. The Ctenuchinae occur only in the New World and have M_2 fully developed and Cu_1 and Cu_2 widely separated. We have maintained these distinctions, realizing fully that venational characters are notoriously variable and that future work may find these characters not sufficiently stable for defining higher categories.

The genus Horama is a member of the Ctenuchinae by having a strong M_2 vein present in the hind wing, but is anomalous in that Cu_1 and Cu_2 are fused except for a fork near the termen. The genus was selected for study in order to evaluate the validity of generic parameters suggested by Hampson (1898) for the entire family. It included species which were readily recognizable by the banded abdomen with lateral bullae, by the long hind legs with plumose tibia and tarsi, and by the brown and yellow color scheme exhibited by most of the species. This phenotypic similarity was presumed to indicate phyletic affinity among the included species. A comparative examination of the genitalia and venation showed this presumption to be erroneous. The differences in structure were often so distinct that it was difficult to homologize parts. The venational studies provided little information for separating species but were responsible for the discovery that H. clavipes (Boisduval) was missing M_2 in the hind wing and therefore was not only incorrectly placed generically but was in the wrong subfamily! This discovery, in turn, stimulated an investigation of various genera in the subfamily Euchromiinae in order to properly place H. clavipes. Comparative studies of the genitalia revealed H. clavipes to be closely related to certain species in the genus Macrocneme Hübner. In addition, we are now convinced that H. clavipes and 24 species formerly placed in Macrocneme are sufficiently different, both morphologically and presumably behaviorally, to warrant the establishment of a separate genus. For that purpose we have resurrected the Hampson name Poliopastea and provided a preliminary survey of its included taxa in the present paper.

Thus, misplaced species, like H. clavipes, emphasize the problems created by defining genera on the basis of adaptive (i.e., mimetic) characters in a family such as the Ctenuchidae where convergence of unrelated taxa occurs frequently.

Our study of the genus Horama has necessitated changes in the taxonomic status of some of the included species. These changes attempt to indicate phyletic affinities, as we perceive them, but no attempt has been made to redefine the genus at this point. Ongoing studies of the generic and higher categories throughout the ctenuchids must be completed before more precise definitions of these taxa can be made.

For the terms employed in this study we have referred to Klots in Tuxen (1970) and to Torre-Bueno (1962). The color nomenclature is from Ridgeway (1912). The dates for Hübner’s works are taken from Hemming (1937) and for the Draudt names occurring in Seitz from Griffin (1936). Cramer’s Papillons Exotiques ߪ was dated from Brown (1941) and from the “Catalogue of the Library,” British Museum (Natural History). References attributed to Saalmüller (1890) are based on Gundlach’s notation (1891) that Saalmüller was responsible for the publication of pages 347 to 354 in Moschler’s work in 1890. Apparently Saalmüller edited a systematic list from a manuscript prepared by Moschler before his death. He also added the plate and changed some of the generic names.

The usual procedure for preparing Lepidoptera genitalia was followed except that the preparations were stored in polyethylene vials (caplugs) rather than being mounted in balsam. In this manner the compact genitalia could be studied from all angles and not be distorted by a cover slip. The polyethylene vials also offered the advantage of having nonwettable sides, which prevented the glycerin from coming in contact with the stopper. The illustrations were done by the senior author with the aid of a camera lucida.

Those individuals and institutions from which material was borrowed for this study are listed below together with the appropriate abbreviation used throughout the text:

AMNH

American Museum of Natural History, New York

ANS

Academy of Natural Sciences, Philadelphia

BM(NH)

British Museum (Natural History), London

CAS

California Academy of Sciences, San Francisco

CM

Carnegie Museum, Pittsburgh

CNC

Canadian National Collection, Ottawa

CU

Cornell University, Ithaca, New York

IML

Instituto Miguel Lillo, Tucumán, Argentina

MCZ

Museum of Comparative Zoology, Harvard University, Cambridge, Massachusetts

NMNH

National Museum of Natural History, Smithsonian Institution

OX

Hope Department of Entomology, Oxford University, Oxford, England

PAD

Pastor Alayo D., Instituto de Biología, Habana, Cuba

SMM

Zoologische Staatssammlung, Munich, Germany

RML

Rijksmuseum van Natuurlijke Historie, Leiden, The Netherlands

UCB

University of California, Berkeley, California

UNM

Instituto de Biologia, Universidad Nacional de México, México, D.F.

UCV

Universidad Central de Venezuela, Maracay, Aragua, Venezuela

USP

Museu de Zoologia, Universidade de São Paulo, São Paulo, Brazil

ACKNOWLEDGMENTS.—The authors wish to acknowledge with gratitude the cooperation and assistance of the following individuals and institutions that, through their support and encouragement, have materially aided the present study: F. H. Rindge, American Museum of Natural History; Allan Watson, British Museum (Natural History); P. H. Arnaud, Jr., California Academy of Sciences; D. F. Hardwick and E. G. Munroe, Canadian National Collection; H. K. Clench, Carnegie Museum; L. L. Pechuman, Cornell University; J. M. Burns, Museum of Comparative Zoology, Harvard University; F. Fernández-Yépez, Universidad Central de Venezuela, Maracay; J. A. Powell and P. A. Opler, University of California, Berkeley; Nelson Bernardi, Museu de Zoologie, Universidade de São Paulo, Brazil; Walter Forster, Zoologische Staatssammlung, Munich, Germany; A. Willink, Instituto Miguel Lillo, Tucumán, Argentina; Pastor Alayo D., Instituto de Biologia, Habana, Cuba; Héctor Pérez R., Universidad Nacional de México; and Rienk de Jong, Rijksmuseum van Natuurlijke Historie, Leiden, The Netherlands. A particular note of gratitude is extended to our colleagues J. F. G. Clarke, D. R. Davis, W. D. Field of the Department of Entomology, Smithsonian Institution, and R. W. Hodges and E. L. Todd of the Systematic Entomology Laboratory, U.S. Department of Agriculture, for their advice, encouragement, and suggestions throughout the course of the study.

That portion of this paper which treats the genus Horama was submitted to the Department of Entomology, Cornell University, in partial fulfillment of the requirements for a Master of Science degree by the senior author and the valuable advice and criticism provided by J. G. Franclemont and H. E. Moore, Jr., during that portion of the study is gratefully acknowledged.

The authors also wish to acknowledge the assistance of Vira Milbank, museum technician, for bibliographic assistance; George Venable, departmental illustrator, for assemblying the figures and maps; and the National Museum of Natural History Photographic Laboratory for the photographs.

This study was aided in part by a grant from the Smithsonian Research Foundation number SG 0632089, and fellowship awards from the Office of Academic Studies, Smithsonian Institution.

Classification

Hampson (1898, 1914) based his classification of 12 species of Horama on the hirsute scales of the hind legs. Subsequently, the names serena and stoneri were added to the genus by Schaus and Lindsey, respectively. The present review bases its classification on a comparative examination of the male and female genitalia. The result has been that eight species names have been maintained, four have been synonymized, two have been relegated to subspecies, and one new species is described. Also, Macrocneme nigricornis Schrottky proved to be conspecific with H. panthalon viridifusa (Schaus). The taxa have been separated into three groups and are discussed below:

GROUP I.—Horama pretus, H. grotei, and H. diffissa are grouped on the tenuous character of their habitus rather than on any specific genitalic resemblances. The group may be artificial but the general color scheme of the body and the dilated antennae give the species some semblance of phyletic affinity. The male genitalia of H. diffissa is notably small in the genus, and those of H. grotei and H. pretus are compact and well sclerotized.

GROUP II.—Horama panthalon, H. tarsalis, and H. zapata are the only species which resemble each other in both the male and female genitalia. In the males the hoodlike uncus and the presence of a membranous lobe on the clasper of the valva coincides with the resemblance of the corpora bursae, the signa, and the origin of the ductus seminal is in the females. No accessory bursae is present and the ostium bursae is preceded dorsocaudally by a medial papilla. Both H. tarsalis and H. zapata differ from H. panthalon in having sclerotized rods laterad of the aedeagus and pectinate antennae.

We were not able to distinguish between the genitalia of the H. panthalon races and have concluded:

1. Those populations from the Lesser Antilles (H. stoneri) and from mainland South America (H. serena) are to be considered color forms of H. panthalon.

2. Those populations from Mexico and the southern United States (H. panthalon texana)are obviously closely related to the Caribbean panthalon but the nonoverlapping range and the larger-sized individuals and tibial tufts suggest sufficient genetic differentiation to warrant subspecific status.

3. Those populations from southern South America (H. panthalon viridifusa) represent a widely disjunct race of H. panthalon that has evolved two distinct morphs through geographic isolation.

GROUP III.—Horama plumipes, H. pennipes, and H. oedippus are grouped on the basis of the anellar plate occupying most of the diaphragma and completely enclosing the aedeagus. H. oedippus and H. pennipes have a bifurcated uncus and a pair of medial processes forming the gnathos. Horama plumipes has a simple uncus and a small U-shaped sclerite in the area of the gnathos.

These groupings (especially Groups II and III) suggest to us that Horama is not a natural group of species. Presently they are held together by the tenuous venational character of a strong M_2 and a long stalked Cu_1 and Cu_2 in the hind wing. The mimetic resemblance of the adults to Hymenoptera, especially in the long, plumose hindlegs, does not appear to correlate well with structural similarities in the genitalia of either sex. The phenotypic resemblances may ultimately prove to be the result of convergence from separate phyletic lines. In the interest of stability we are maintaining the polyphyletic grouping of Horama until such time as studies on related groups are completed and our understanding of the ctenuchid genera is more complete.

Checklist for Horama Species

Horama Hübner

= Mastigocera Harris

= Phylloecia Guérin

= Callicarus Grote

= Drucea Kirby

1. H. pretus (Cramer)

= Zygaena eunolphus Fabricius

= Mastigocera vespina Harris

2. H. grotei Butler

3. H. diffissa Grote

= Horamia [sic] pretellus Herrich-Schäffer

4. H. panthalon panthalon (Fabricius)

= Mastigocera tibialis Butler

= Horama serena Schaus [new synonymy]

= Horama stoneri Lindsey [new synonymy]

5. H. panthalon texana (Grotc) [new status]

6. H. panthalon viridifusa (Schaus) [new combination, new status]

= Horama castrensis Jones [new synonymy]

= Macrocneme nigricornis Schrottky [new synonymy]

= Horama flavata Jones [new synonymy]

= Horama fulvitarsis Schrottky

7. H. tarsalis Walker

8. H. zapata Dietz and Duckworth [new species]

9. H. pennipes (Grote)

= Horamia [sic] plumosa Herrich-Shäffer

10. H. plumipes (Drury)

= Phylloecia punctata Guérin

= Horama jalapensis Neumoegen

11. H. oedippus (Boisduval)

Genus Horama Hübner

Horama Hübner, 1819:125.—Grote, 1866:179.—Stahl, 1882: 92—Kirby, 1892:130.—Hampson, 1898:417—Zerny, 1912: 121.—Draudt in Seitz, 1916:143—Forbes, 1930:25; 1939: 100.—Fleming, 1959:94. [Type-species: Sphinx pretus Cramer, 1777, by monotypy.]

Mastigocera Harris, 1839:289, 315. [Type-species: Mastigocera vespina Harris, by subsequent designation by Grote, 1866: 180 (now considered synonym of H. pretus Cramer).]

Phylloecia Guérin, 1844:504.—Kirby, 1892:129. [Type-species: Phylloecia punctata Guerin, by subsequent designation by Kirby, 1892:129 (now considered synonym of H. plumipes).]

Horamia [sic] Walker, 1854:251 [as Euchromia species].—Clemens in Morris, 1862:275 [incorrect original spelling].

Callicarus Grote, 1866:182—Saalmüller in Möschler, 1890:349. [Type-species: Callicarus pennipes Grote, by subsequent designation by Hampson, 1898:417.]

Callicorus [sic] Kirby, 1892:129 [as a synonym of Phylloecia].—Neumoegen and Dyar, 1893:100 [incorrect subsequent spelling].

Drucea Kirby, 1892:130. [Type-species: Drucea oedippus (Boisduval), by original designation.]

Horama is not an easily characterized genus. The included species exhibit a wide range of variation in external appearance and in the genitalia (see illustrations). The genus is held together by a hind wing venational character that has M_2 strong and Cu_1 and Cu_2 united or long stalked with a fork at the termen.

Horama pretus (Cramer)

FIGURES 1a,b, 13; PLATE 1: FIGURE 1; MAP 3

Sphinx pretus Cramer, 1777, vol. 2: 121, 150 [index], pl. 175: figs, E., F.

Horama pretus.—Geyer in Hübner [1828], 3: pl. [35]: figs. 1–4.—Dewitz, 1877:94.—Stahl, 1882:191.—Möschler, 1890: 113.—Saalmüller in Möschler 1890:349—Gundlach, 1891: 153.—Kirby, 1892:130—Hampson, 1898:422, fig. 222.—Kirby, 1908:120, pl. 473: figs. 1–4.—Zerny, 1912:122—Draudt in Seitz, 1916:144, pl. 21: row i.—Wolcott, 1923[1924]:157—Forbes, 1930:25, pl. II: fig. 1.—Zerny, 1931:19—Wolcott, 1936:413; 1941:125.—Martorell, 1945[1948]:177, 499.—Wolcott, 1948[1951]:575.

Euchromia (Horamia) pretus.—Walker, 1854:252.—Clemens, 1860:546.—Clemens [in part] in Morris, 1862:276.

Zygaena eunolphus Fabricius, 1782:505 [appendix]. [Type-locality: not stated. Type: lost.]

Mastigocera vespina Harris, 1839:315.—Clemens in Morris, 1862:278. [Type-locality: St. Thomas, West Indies. Type: lost.]

Key to Species of Horama

MALE (Plate 1: figure 1).—Head black. Palpi cream, tips black, obliquely upturned and reaching vertex, third segment short and porrect. Antennae serrate, dilated beyond middle; black dorsally with recurved, naked yellow tips preceded by white spot; ventrally, entirely yellow, naked, black band beyond middle. Patagia creamish white. Tegulae tawny, anterior margins black. Thoracic disc tawny with black anterior margin. Pectus black with yellow patch beneath hind wing and white spots above coxae. Abdomen ochreous tawny; first tergite white, occasionally suffused with cream-colored scales; second tergite with bluish-black foremargin and two small white dots on hind margin; first sternite bluish black; second sternite white with the scaling extending dorsally onto third tergite; third and apical sternites bluish black. Legs bluish black, variously spotted with cream yellow; tarsi entirely cream yellow; hind tibiae with black band of two rows of short, hirsute scales between spurs; hind tarsi with single row of dorsal, hirsute scales. Wings immaculate except for white spot at humeral angle of forewing, dark tawny to russet; hind wing with costal margin cream. Underside: both wings similar to upperside but inner margin of forewing cream colored. Venation (Figure 22). Alar expanse 36–38 mm.

MALE GENITALIA (Figure 1a,b).—Heavily sclerotized, compact; uncus bifurcate at tip, immovably attached to tegumen at base; small triangular sclerites laterad of tegumen represent the gnathos; ventral plate of anellus firmly united with valves.

FEMALE.—Similar to male but slightly larger. Female easily distinguished by small, cream-colored spots on upper third of forecoxae, remainder is bluish black. Forecoxae in the male are entirely cream colored. Alar expanse 37–40 mm.

FEMALE GENITALIA (Figure 13).—Genital plate with lamella antevaginalis modified into medial periostial projection with a pair of lateral arms cephalodorsad of opening; ductus bursae lightly sclerotized for half its length, becoming membranous before entering corpus bursae. Bursa copulatrix is covered by a saddle-like patch of signa composed of numerous inwardly directed spines, regularly arranged. Ductus seminalis enters on corpus bursae opposite to ductus bursae. A single accessory bursa extends from distal end of bursa copulatrix.

LARVA.—The only recorded description for any member of the genus, made by Wolcott (1923), reads as follows:

Fully-grown larvae are about 15 mm. long and 7 mm. wide, bright reddish-orange, reddest on thorax and head, shining. Body clothed with numerous spreading tufts of grey and white hairs, curved towards their tips. On the seven anterior abdominal segments dorsally are four compressed tufts of black hair in pairs, bending towards each other, the anterior pair of each segment closer together and touching at apex.

Cocoon of thin grey silk with the longer hairs from the larva entangled in it. Pupa bright reddish brown.

Martorell (1948) notes that the caterpillar is a leaf-webber and that it is gregarious with eight to ten larvae occurring in one web. The larvae seem to prefer the tender foliage of the terminal branches of the lowland host tree, Elaeodendron xylocarpum.

TYPE.—The Rijksmuseum van Natuurlijke Historic in Leiden contains two Cramer specimens, one, the male lectotype, here designated and the other, the allolectotype.

TYPE-LOCALITY.—Isle of St. Thomas (West Indies).

HOST PLANTS.—Larvae on “cocorrón,” Elaeodendron xylocarpum (Celastraceae). Adult on Tournefortia sp. and Heliotropum indicum (Boraginaceae).

DISTRIBUTION (Map 3).—Greater and Lesser Antilles.

REMARKS.—The island populations, except for that on St. Kitts, maintain a consistent phenotypic pattern. The specimens from St. Kitts lack the yellow patch beneath the hind wing and the legs, especially the femora and midcoxae, are always black. The male and female genitalia of the St. Kitts specimens are indistinguishable from those examined from other islands. We feel the color variations in the St. Kitts population are merely local differences which, lacking biological evidence to the contrary, do not warrant formal taxonomic recognition. The Lesser Antilles have been poorly collected and we suspect that with future sampling the differences exhibited by the St. Kitts specimens may appear in other island populations or in some combination closer to the typical form from St. Thomas.

SPECIMENS EXAMINED (30 males, 28 females).—CUBA: Cuba, BM (NH).

PUERTO RICO: Guánica, 28 Oct., NMNH; Maricao, 26 Jan., MCZ; Mayagüez, 5 Mar., NMNH; Pico del Este, El Yunque Radar Station, 1000 m, 5–6 Jan., NMNH; San German, Mar., CU; San Juan, 11–14 Feb., Mar., 21 Sept., NMNH, AMNH; “Porto Rico,” NMNH, MCZ.

CULEBRA ISLAND: 6 July, NMNH.

ST. THOMAS: 22 Feb., 24 Feb., 12 Mar., AMNH. No date, BM (NH).

ST. JOHN: 6 Mar., 11 Mar., one pair in copulo, 20 Mar., AMNH. Gallows Point, 4–11 July, NMNH.

TORTOLA: One pair in copulo, NMNH; 29 Mar., AMNH.

VIRGIN GORDA ISLAND: Virgin Peak, 15 April, NMNH.

ST. KITTS: Frigate Bay, 12 April, NMNH.

“ANTILLES”: No date, CAS.

Horama grotei Butler

FIGURES 2a–c, 14; PLATE 1: FIGURE 2; MAP 3

Horama grotei Butler, 1876:374.—Kirby, 1892:131—Hampson, 1898:421, fig. 221.—Zerny, 1912:121.—Draudt in Seitz, 1916:144, pl. 21: row i.

MALE.—Head yellow, black spot between antennae. Palpi upturned with second segment reaching vertex, third segment long and obliquely porrect; black with scattered yellow scales on first and second segments. Antennae serrate, yellow with black band beyond middle, naked except for a few scattered scales, tips recurved. Patagia yellow with anterior margin black mixed with bluish-violet iridescence, obscured above by downy, light gray hairs; a white spot beneath each tegula and a transverse yellow patch on metathorax. Pectus downy, gray, with white spots above coxae and yellow tufts below wings and patagia. Abdomen with first tergite slate with bluish-violet iridescence fading posteriorly into tawny; remaining tergites tawny with hind margins of second and third narrowly pale yellow; anterior half of first and second sternites slate with dark bluish-violet iridescence, posteriorly pale yellow. Legs yellow, femora blackish-violet gray, hind tibiae with black band between spurs. Forewing russet, tawny toward base; hind wing russet with costal margin pale yellow. Underside of forewing russet, inner margin pale yellow; hind wing russet with costa ochreous orange. Venation (Figure 23). Alar expanse 36–41 mm.

MALE GENITALIA (Figure 2a–c).—Valvae noticeably reduced and closely united to vinculum. Saccus long and club-shaped. Uncus straight, undivided. Gnathos consisting of paired commashaped sclerites located medioventral to the base of the tegumen. Ventral anellar plate (=juxta) fused laterad to valvae and dominated by a prominent medial hook. Aedeagus gently curved at zone, phallobase triangular.

FEMALE (Plate 1: figure 2).—Similar to male except slightly larger. Alar expanse 41–46 mm.

FEMALE GENITALIA (Figure 14).—Ostium bursae a triangular pouch formed by the lamella antevaginalis. Ostium located immediately dorsad to pouch. Basal half of corpus bursae covered by inwardly directed spines of varying lengths. Two accessory bursae present, one enters on cervix bursae, the second attaches laterally on corpus bursae proper. Ductus bursae completely sclerotized; inception of ductus seminalis on cervix bursae.

TYPE.—Lectotype male, here designated, British Museum (Natural History).

TYPE-LOCALITY.—Jamaica.

HOST PLANTS.—None recorded.

DISTRIBUTION (Map 3).—Jamaica.

REMARKS.—This species, apparently endemic to the island of Jamaica, most closely resembles H. pretus in both the compact structuring of the male genitalia and the general similarity in color pattern and size.

SPECIMENS EXAMINED (54 males, 21 females).—JAMAICA: Constant Spring, St. Andrew, 6 May, AMNH; Hardware Gap, Greenhills, April, CM; 1 mi N Hardware Gap, Portland Parish, 12–20 Nov., NMNH; 4 mi S Hartford [SW of Long Bay], 850 ft, 26–27 April, NMNH; Newcastle, Greenhills, 16–20 Feb., MCZ, BM(NH); Rose Hill, Runaway Bay, 900 ft, St. Ann Parish, 29 April-2 May, NMNH; St. Ann, BM (NH); Mt. Diablo, Hollymount, 2754 ft, St. Catharine Parish, 21–24 April, NMNH; Mason River Station, 4 mi NW Kellits, 2100 ft, Clarendon Parish, 16–19 April, NMNH; Cinchona, 26–28 Feb., AMNH; no specific locality, 3 Aug., BM(NH), NMNH, MCZ.

Horama panthalon panthalon (Fabricius)

FIGURES 3a–b, 15; PLATE 1: FIGURES 3–5; MAP 1

Zygaena panthalon Fabricius, 1793:405.

Horama panthalon.—Dewitz, 1877:94.—Kirby, 1879:19.—Möschler, 1890:113—Saalmüller in Möschler, 1890:349.—Gundlach, 1891:153.—Kirby, 1892:131.—Hampson, 1898:417, pl. 15: fig. 9.—Draudt in Seitz, 1916:143, pl. 21: row h.— Wolcott, 1923[1924]: 157—Forbes, 1930:25, pl. 2: fig. 4.—Forbes, 1931:341—Wolcott, 1936:413; 1941:125; [1951]:575.

Horama pantalon [sic].—Zerny, 1912:121.

†Horamia [sic] pretus [not Cramer, 1777], Walker, 1856:1632 [in part]. [Varieties listed as beta, gamma, and delta are misidentified.]

Mastigocera tibialis Butler, 1876:373. [Type-locality: Haiti, male holotype in BM(NH).]

Drucea tibialis— Kirby, 1892:130.

Horama serena Schaus, 1924:12. [Type-locality: Canal Zone, Panama, male holotype in NMNH. New synonymy.]

Horama stoneri Lindsey, 1926:34. [Type-locality: Antigua, female holotype in NMNH. New synonymy.]

MALE (Plate 1: figures 3, 5).—Head black with bluish tinge. Frons with central black stripe, lateral ochreous-yellow spots and one ochreous-yellow spot between antennae. Palpi yellow, upturned not reaching vertex; first segment rough, third segment short and smooth. Antennae black, apices yellow, pectinate becoming serrate at tips. Patagia bluish black with creamish-white spots laterally and two confluent spots in the center. Tegulae bluish black with central yellow stripe. Thoracic disc bluish black with four distinct ochreous-yellow spots. Pectus bluish black with yellow patches beneath each wing and at base of patagia; white spots above each coxa, the prothoracic spot being smaller than posterior spots. Abdomen, banded, anterior margin bluish black, hind margin, ochreous yellow; first tergite, bulbous laterally, center with anterior white patch separated by bluish black line from posterior, ochreous-yellow hind margin; first sternite with white band visible dorsally on second tergite. Legs, variously colored with ochreous yellow and bluish black; coxae, usually bluish black with ochreous-yellow patch; trochanters and femora, usually bluish black; tibiae and tarsi of fore and midlegs yellow, occasionally with black scaling at extremities on tibiae; hind tibiae, bluish black with basal yellow band and black, hirsute band between spurs; hind tarsi, ochreous yellow. Forewing dark brown, white spot at humeral angle; hind wing pale yellow on basal half, buff along costa, apex with dark brown band widest at costa and tapering irregularly to tornus. Underside: both wings light brown to fulvous with basal area of hindwing ochreous yellow. Venation (Figure 24a) shows some variation (Figures 24b,c). Occasionally R_2 does not anastomose with stalk of R3–5 to form accessory cell. Occasionally Cu_1 + Cu_2 completely united or fork of Cu_2 extremely weak. Alar expanse 32–35 mm.

MALE GENITALIA (Figures 3a,b).—Strongly sclerotized with hoodlike uncus, wide at base with concave, ovoid sclerites ( = gnathos) laterally. Valva with two processes, the dorsal club-shaped, sclerotized, with inner surface rough; the ventral membranous with scattered setae. Shape of the dorsal club varies slightly, apex sometimes rounder or narrowly truncate. Saccus short. Diaphragma around aedeagus occasionally sclerotized at point of attachment. Ventral anellar plate (= juxta) a simple, domelike process between the valvae.

FEMALE (Plate 1: figure 4).—Similar to male. Alar expanse 31–35 mm.

FEMALE GENITALIA (Figure 15).—Lamella post-vaginalis a broad, medial papilla. Lamella antevaginalis a smaller papilla with ostium opening at apex. Ductus bursae wholly sclerotized, distal end sharply bent, followed by a series of short, dentate spines to where ductus seminalis enters; bursae copulatrix with a single accessory bursa and signa consisting of a row of heavy, inwardly directed spines, additional, irregular spines scattered to one side. Distal end of bursa with a sculptured granular appearance from small sclerotized dots.

TYPE.—According to Hampson (1898) and Zimsen (1964), two syntypes of Zygaena panthalon Fabricius are in the Zoologisk Museum, Copenhagen, Denmark.

TYPE-LOCALITY.—West Indies.

HOST PLANTS.—None recorded. Adults have been collected resting on Waltheria indica L. [Sterculiaceae]. Common name, “malvavisco” (Wolcott, 1951).

DISTRIBUTION (Map 1).—Throughout the Antilles from Cuba in the west to the isles of St. Eustatius and St. Maarten in the east; also in Venezuela, Colombia, and Panama.

REMARKS.—A comparative examination of specimens and their genitalia for the taxa described as panthalon Fabricius, stoneri Lindsey, and serena Schaus has convinced us that these phenotypes represent color forms of a single species. Previously, Forbes (1931) noted the variability in color and size within stoneri and serena populations and considered them “minor races” of panthalon. Our studies indicate that serena is not entirely allopatric, occuring with the typical panthalon in the Greater Antilles, and that stoneri is an oranger form of panthalon from the Lesser Antilles. The distinctions are largely ones of color and are not, in our opinion, of sufficient magnitude to continue their formal taxonomic recognition.

In contrast, the phenotypes described as texana and viridifusa also represent populations closely related to panthalon but with geographic distributions and phenotypic characters that do not overlap with the forms of panthalon occuring in a circum-Caribbean distribution. In the absence of biological information to the contrary, we feel justified in formally recognizing these phena as subspecies of panthalon. Their phyletic affinity with the Caribbean form is thereby suggested.

The orange hind wing populations of p. panthalon (= stoneri Lindsey) (Plate 1: figure 4) can be distinguished from the other populations of p. panthalon by a uniformly cinnamon-brown forewing and an ochreous-orange hind wing that fades to brown at the apex. The underside of the forewing is uniformly ochreous tawny and the hind wings are ochreous orange with slightly darker scaling toward the termen. The alar expanse and tufts of the hind tibiae are similar in size to p. panthalon occurring in the Greater Antilles and Venezuela.

MAP 1.—Distribution of Horama panthalon panthaton (Fabricius) and H. panthalon texana (Grote).

The occurrence of the orange hind wing populations on predominantly arid islands suggests that the color variation is a phenotypic response to a dry habitat. All the specimens from St. Croix, Antigua, Anguilla, St. Martin, and St. Eustatius have the orange hind wing. An occasional specimen from the arid lowlands of Puerto Rico (San German) shows the orange hind wing.

The populations of p. panthalon from Colombia, Venezuela, and Panama have a yellower appearance than those from the West Indies. Schaus based his description of serena on a unique specimen (Plate 1: figure 5) from the Canal Zone, Panama. The slight differences in color and in tarsal tufting of the holotype are due to its poor condition. Several fresh specimens from Madden Dam, Canal Zone, have been examined and agree well with the usual yellow form of p. panthalon from Colombia and Venezuela.

The yellow populations of p. panthalon ( = serena Schaus) (Plate 1: figure 3) differ from the typical p. panthalon by the following: head, including the frons, is usually entirely yellow instead of black; the patagia are entirely yellow rather than black, although the hind margin and the paired spots may be faintly indicated; the tegulae and pectus are predominately yellow; the white spots above the coxae are ringed with black; the medial transverse black stripe of the first abdominal tergite is usually absent or only slightly marked; the remaining abdominal segments and legs are more ochreous yellow than the typical p. panthalon with only narrow bands on the abdominal segment foremargins; the femora and the distal half of the hind tibae are black.

The yellow form of p. panthalon shows considerable variation within populations. The color pattern of the patagia and first abdominal tergite is the most variable. Specimens from San Esteban and Aroa, Venezuela, have entirely yellow patagia and others are black with creamish-yellow spots resembling the typical p. panthalon. Specimens from El Cují, Venezuela, occur with both a thoracic disc that is mostly yellow and one that is black with small, yellow spots resembling the typical p. panthalon. The coloring of the legs varies with the hind femora occasionally scaled with yellow and the fore and midtibiae and tarsi banded with black. The brown of the fore and hind wings varies in hue depending on the freshness of the specimen.

The genitalia of the typical, the yellow and the orange, forms of p. panthalon are indistinguishable. The only apparent difference between the forms is in the amount of yellow and orange color present. Both the yellow and orange forms show some geographical restriction, yet within individual populations there is a variation in color pattern that also occurs in p. panthalon populations from the Antilles.

Figures 3 and 4 show the two forms of p. panthalon from Venezuela and St. Croix. The most typical form of p. panthalon is intermediate and resembles Figure 4 with the wing pattern of Figure 3.

SPECIMENS EXAMINED (126 males, 91 females).—CUBA: Oriente: Guantanamo, 20 July, NMNH; 25 May, PAD; Loma del Gato, Sierra Maestra, 2500 ft, July-Aug., BM (NH); Santiago, NMNH; 19 July, PAD; Siboney, 7 Dec, PAD; “Eastern Cuba,” CU; “Cuba,” NMNH.

JAMAICA: Hardware Gap, 4800 ft, 13–15 July, AMNH; “Jamaica,” BM(NH), NMNH.

HAITI: Manneville, 16–17 Nov., MCZ; Petionville, 30 June, CU; Port-au-Prince, about 300 ft, 19–28 Feb., 21–29 March, 15–21 April, AMNH; 21 May, MCZ; “Haiti,” BM (NH).

DOMINICAN REPUBLIC: La Vega Province, Constanza, 1164 m, Hotel Neuva Suiza, 29 May, NMNH; 10 km NE Jarabacoa, Hotel Monta??ca. 520 m, 28 May, NMNH; near Barahona, 800 ft, 26 Nov., NMNH; St. Domingo, BM (NH).

PUERTO RICO: Aguirre Center, 2 June, CU; Boquerón, 9 Jan., NMNH; Coamo Springs, 5–7 June, Sept., AMNH; Nov. MCZ; Manatí, 27–29 June AMNH; Mayagüez, 30 Oct., MCZ; Palmas Abajas (near Guayama), 1900 ft, 15 Nov., CU; San Germán, 9 Jan., 16–17 April, CU; San Juan, CU; “Porto Rico,” Jan., NMNH.

ST. CROIX: Christiansted, 19 Nov., NMNH; Kingshill, Oct.-Dec, CU; Mt. Eagle, 6–16 July, NMNH; Mt. Washington, 22 Dec., NMNH; Mt. Washington and Union, 28 Dec, NMNH; Orangegrove, W end, 6–16 July, 21 Dec, NMNH; Rust Up Twist, 6–16 July, 21 and 28 Dec., NMNH.

ANTIGUA: Antigua Beach Hotel, 13 June, RML; no specific locality [stoneri holotype], 24 June, NMNH.

ANGUILLA: Rendez-Vous Bay, July, RML; Rendez-Vous Point, RML.

SINT MAARTEN: Cul de Sac Reward, July, RML.

SINT EUSTATIUS: NWI, The Quill, June, RML.

GUADELOUPE: Anse á L’Eau, 4–6 Feb., NMNH.

VENEZUELA: Anzoategui: Clarines, 6 kms N, 28 August, UCV. Aragua: Maracay, 22 July, UCV; Nov.–Dec., SMM; El Limón [Maracay], 450 m, 2 April, 24 June, UCV; Rancho Grande, 1100 m, 18–25 May, 5–20 June, 3–25 July, 5 Oct., 6 Dec, UCV; 8, 12 June, 9, 26 July, NMNH; Carretera Maracay-Choroni, 1500 m, 27 May, UCV. Carabobo: Alto de Yuma 22 July, UCV; San Esteban, June, BM(NH); Las Quiguas, San Esteban Valley, Nov.–10 March, CM; BM (NH); San Jean [mountain ridge between San Esteban and Borburata], 24 Dec, CU. Distrito Federal: Caracas, BM(NH); Caracas, Berg Avila, June–July, SMM; Caracas, Los Venados, June–July, SMM. Falón: Sabaneta, 4 kms S, 15 August, UCV. Lara: Barquisimeto, 3 Aug., UCV; El Cují, 7 kms N Barquisimeto, 29 June–1 July, NMNH. Mérida: Mérida, NMNH; BM (NH). Miranda: Nucleo “El Laurel,” 19 May, UCV; San Antonio de los Altos, 19–21 Oct., UCV; Los Teques, 100 m, 5 June, UCV. Monagas: Caripito, 15 March, 3 June, 7–15 July, AMNH. Trujillo: Carvajal, 15 June, UCV; Valera, NMNH. Yaracuy: Aroa, NMNH. Zulia: Maracaibo, 19 June, UCV. “Venezuela,” CM; BM (NH); NMNH.

COLOMBIA: Don Amo, [Magdalena, 11°14′N, 73°52′W], 2000 ft, June, July, BM (NH).

PANAMA: Canal Zone [serena type], 8 May, NMNH; Madden Dam, Canal Zone, 14 June, MCZ.

Horama panthalon texana (Grote), new status

PLATE 1: FIGURE 6; MAP 1

Euchromia plumipes.—Clemens [not Drury 1773], 1860:546.

†Euchromia pretus.—Clemens [not Cramer 1777], in Morris, 1862:276. [Listed as “Var.” under E. pretus]

Callicarus texanus Grote, 1866:184.—Butler, 1876:372.—Druce, 1884:49; 1897:338.

Horama texana Grote, 1868:116.—Grote and Robinson, 1868: vi.—Hampson, 1898:418, fig. 217.—Dyar, 1902[1903]:77.—Holland 1903:100, pl. 13: fig. 9.—Zerny, 1912:122—Draudt in Seitz, 1916:143, pl. 21: row h.—Barnes and McDunnough, 1917:29.—McDunnough, 1938:44.

Phylloecia texanus.—Kirby, 1892:129.

Phylloecia texana.—Neumoegen and Dyar, 1893:100.

MALE.—Similar to the typical p. panthalon phenotype except for the following: base of second palpal segment usually banded with black scales; fore and midlegs bluish black, distal half of hind tibiae banded with long black hirsute scales; hind tarsi ochreous orange with two rows of short, hirsute scales; both wings dark brown except for some buff yellow scales along costa of hind wing. Underside: both wings lighter brown with bright ochreous-orange patch at base of hind wing along costa. Venation almost identical to panthalon (Figure 24a) but with several variations (Figure 24b,c). Alar expanse 34–37 mm.

MALE GENITALIA.—Not distinguishable from that of the typical panthalon (Figure 3a,b).

FEMALE (Plate 1: figure 6).—Same as the male except slightly larger. Alar expanse 35–38 mm.

FEMALE GENITALIA (cf. Figure 15).—Similar to that of the typical panthalon.

TYPE.—Lost. Apparently without seeing Clemens’ specimens, Grote (1866) established Callicarus texanus by quoting verbatim Clemens’ (1860) description for Euchromia plumipes. The only type information given by Clemens is “Texas. Coll. Capt. Pope. Smithsonian Institution.” We have been unable to locate any specimens in the national collection that fit this information nor does the Philadelphia Academy of Sciences, which has some Clemens material, have any record of it (Emsley in litt.). There are four specimens in the national collection with the identical label “Tex.” but each has a different collection label (C. V. Riley, E. L. Graef, or H. G. Dyar). There are no specimens specifically labeled from the Pope collection.

TYPE-LOCALITY.—Texas.

HOST PLANTS.—None recorded. Adult has been collected at Wislizenia refracta var. mamillata [Capparidaceae].

DISTRIBUTION (Map 1).—Southern Texas, Florida, and Arizona, Mexico and Guatemala.

REMARKS.—This race is closely related to the typical panthalon from the Caribbean. Its geographic distribution is distinct, and its phenotypic differences are sufficiently consistent throughout its range for a stabilized genetic composition to be inferred. Contrary to our suggestion that the orange hind wing form of panthalon from the Lesser Antilles was a climatic variant, texana is apparently unaffected by climate. Its hind wings remain uniformly brown even though it has been collected in both humid coastal plains (Veracruz) and in desert areas (Monclova and La Paz) of Mexico.

The specimen sizes for the texana populations are consistently larger than those of the Caribbean populations of p. panthalon. The hind tibial tufts are more pronounced, resembling those of oedippus, and the hind wings are entirely brown. The genitalia of p. panthalon and p. texana are indistinguishable.

SPECIMENS EXAMINED (208 males, 135 females).—UNITED STATES: Arizona: Baboquivari Mts., 27 April, NMNH; Nogales, 5 July, 26 July, BM (NH). Florida: no specific locality, CM. Texas: Alpine, 30 June, CAS; “Bastrop Co.,” NMNH; Brownsville, 11 June, NMNH; Aug. CNC; 23 Oct., CAS; 10 and 20 Nov., NMNH; 14 Dec., CAS; St. Thomas, Brownsville, NMNH; Ft. Davis, 26 June, AMNH; Gatesville, 13 Nov., AMNH; Kerrville, NMNH; Kingsville, CU; Lake Brown [ = Brownwood Lake?] St. Pk., 15 Sept. AMNH; Laredo, 21 Oct., NMNH; Mercedes (Hidalgo), 5 Oct., 14 Nov., 1 Dec., AMNH; New Boston, Bowie Co., 18 Sept., NMNH; Oak Spring, Big Bend Nat. Pk., 30 June, AMNH; Pharr, 12 March, AMNH; Shovel Mt. [Burnet Co.], NMNH; Uvalde, MCZ, 12 Oct., NMNH; “Texas,” NMNH; BM (NH).

MEXICO: Baja Califorina Sur: Arroyo Seco, 6 Oct., CAS; La Paz, Guaycura Hotel grounds, 5 Nov., CM; La Paz, 2 mi S, 6 Aug, UCB; La Paz, 25 mi W, 30 Aug., CAS; San José del Cabo, AMNH; San Venancía [S. Benancío?], 8 Oct., CAS. Chiapas: Cardenia, 10 Aug., CNC; Chiapa del Corzo, 4 Aug., CNC; Cintalapa, 2 Aug., CNC; Huixtla, 20–25 mi N, 1–4 June, CNC; near Ixtapa, 11 June, CNC; junction Hwys. 190–195, 6 June, CNC; Ocozocoautla, 2700 ft, 1 Aug., CNC; 26–28 Sept., CAS; Simojovel, 9 June, CNC; Santo Domingo, 15 mi SE Simojovel, 8–15 June, UCB; Tonalá, 5 June, CNC. Coahuila: Monclova, 24 mi N, 12 Aug., CNC. Colima: Esperanza, 28 Oct., NMNH. Durango: 10 mi SW Durango on Hwy. 40, 16 June, NMNH. Guerrero: Acapulco, 29 July, NMNH. Hidalgo: Guerrero Mill, 9000 ft, NMNH; Jacala, 4592 ft, 10 July, MCZ; Zimapán, 3 mi E, 6400 ft, 31 July–1 Aug., NMNH. Jalisco: Volcan Colima, July, Aug., Oct., SMM. Mexico: Popocatépetl Park, 8000 ft, June, NMNH. Michoacán: Apatzingán, 5 Dec, NMNH. Morelos: Cuernavaca, June, NMNH; Zacualpam [Zacualpan?], July, AMNH. Nyarit: Tepic, 17 mi NW, 23 Nov., CAS. Nuevo Leon: 20 mi S Sabinas Hidalgo, 7 July, UCB; Mesa de Chipinque, 1365 m, 16–18 July, CU; 23 July, CNC; 10 Aug., NMNH; Galeana, 3 mi E, 5000 ft, 7–9 Aug., NMNH; Huasteca Canyon near Monterrey, 11 July, CNC; 4 Nov., NMNH; Linares, 20 mi W, 8 Nov., CAS; 10 mi S Linares, 24 Dec, CAS; Oaxaca: “Ticaltapec” 28 July, CM; “Oaxaca,” NMNH. Puebla: La Ceiba, 30 Oct., UNM; Estacióm de Bombeo, San Diego, July, 31 Oct., UNM; Tehuacán, 11 Aug., NMNH. San Luis Potosí: Tamazunchale, 29 March, UCB; 2 mi N, 400 ft, 16–18 July, NMNH; El Salto Falls (4 mi W Antigua Morelos), 2000 ft, 11–14 July, NMNH; El Ba??, 7 m S Ciudad Valles, 300 ft, 20 Dec, CAS; Sinaloa: Mazatlán, 5 mi N, 1 July–15 Aug., UCB, CNC; San Carlos Bay, 10 Aug., CAS; Tamaulipas: 4 mi SW Ciudad Victoria, 1100 ft, 10 July, NMNH; Tampico, 8 June, AMNH; July, NMNH. Veracruz: Dos Amates, Catemaco, 27 April, UNM; Coatepec, NMNH; Cotaxtla Exp. Station, 22 July, UCB; Córdoba, April, May, 9 June, July NMNH; May, CM; 6 July, UCB; 3 Aug., NMNH: El Camaron, 5 mi W, CNC; Huatuxco [Huatusco], BM(NH); Jalapa, BM(NH), NMNH; April, (BM(NH); Jalapa del Marquez, 16 Aug., CNC; Estación Biológica, Los Tuxtlas, 22 June, UNM; Misantla, May, AMNH. Orizaba, May BM (NH); July, NMNH; AMNH; 10 Sept., CAS; Paso San Juan, 9 July, NMNH; Rinconada, 6 mi SE. 21 June, UCB; Cerro El Vigie, Santiago Tuxtla, May–June, UNM; Santa Rosa, May, NMNH; “Vera Cruz,” CAS; NMNH. Specific locality not identified: Milpas, 5900 ft, BM (NH); “Sierra Madre,” 29 June, CM; “Southern Mexico,” CM; “Mexico,” BM(NH); CU; SMM.

GUATEMALA: Escuintla, July, NMNH. San Marcos: Puente Ixben, 6 July, NMNH; “Ciudad de Guatemala,” BM (NH).

Horama panthalon viridifusa (Schaus), new combination, new status

PLATE 2: FIGURES 7, 8; MAP 2

Macrocneme viridifusa Schaus, 1904:135.—Zerny, 1912:96.—Hampson, 1914:206, pl. XI: fig. 6.—Draudt in Seitz, 1916: 106, pl. 28: row g.

Horama castrensis Jones, 1908:144.—Zerny, 1912:121.—Hampson, 1914:267, pl. XIV: fig. 30.—Draudt in Seitz, 1916:143, pl. 21: row i.—Travassos, 1940–272.—Biezanko, et al, 1957: 75. [Type-locality: Castro, Parana, Brazil. Type: Holotype male in BM(NH). New synonymy.]

Horama flavata Jones 1908:144.—Zerny, 1912:121.—Hampson, 1914:266, pl. XIV: fig. 29.—Draudt in Seitz, 1916:143, pl. 21: row i.—Travassos, 1940:273. [Type-locality: Castro, Parana, Brazil. Type: Holotype male in BM(NH). New synonymy.]

Macrocneme nigricornis Schrottky, 1912:166.—Hampson, 1914: 209, pl. XI: fig. 13.—Draudt in Seitz, 1916:103, pl. 28: row f. [Type-locality: Bompland, Misiones, Argentina. Type: Destroyed. New synonymy.]

Horama fulvitarsis Schrottky, 1912:166. [Type-locality: Bompland, Misiones, Argentina. Type: Destroyed.]

MORPH I MALE (Plate 2: figure 7).—Had brownish black. Palpi black, upturned reaching middle of frons. Antennae black, pectinate becoming serrate at tips, tips slightly recurved. Thorax, abdomen, and wings brownish black. Patagia with paired lateral and subdorsal white spots. Pectus with single white spot on each epimeron. Forewing with white spot at base. Abdomen with paired, white subdorsal spots on first tergite and on pleura caudad of lateral bullae; first and second sternites with single medial spot. Legs brownish black with two rows of plumose scales along tibia to midtarsus. Alar expanse 26–36 mm.

MORPH II MALE [=flavata Jones] (Plate 2: figure 8).—Head brownish-black. Frons with ochreous-yellow spots bordering eyes and between antennae. Palpi yellow, upturned, first segment rough, second segment smooth and black. Antennae black, pectinate becoming serrate at tips. Patagia brownish black with white spots laterally and subdorally. Tegulae brownish black with medial longitudinal ochreous-yellow stripe. Thoracic disc brownish black with four ochreous-yellow spots. Pectus brownish black; ochreous-orange patches below each wing and at base of patagia; white spots on each epimeron, the most cephalad being slightly smaller than those caudad. Abdomen blackish brown, hind margins faintly banded with ochreous brown. First tergite slightly bulbous laterally, basal half ochreous yellow; center with two white subdorsal spots separated from yellow by blackish-brown stripe. White spots on pleura of first and second segments and at midventer; remaining sternites fringed or spotted with ochreous-orange. Legs brownish black with ochreous-orange spots; hind legs with two rows of black, hirsute scales on basal half of tibiae; forewing dark brown with white spot at humeral angle and yellow spot on radius near base; hind wing ochreous yellow, broadly suffused with dark brown at apex, termen, and along veins. Underside: forewing light brown, costa with ochreous-yellow scales at base, buff along dorsum; hindwing mostly bright ochreous yellow suffused with dark brown at apex and termen. Alar expanse 32–34 mm.

MALE GENITALIA (cf. Figure 3a,b).—There are no apparent and consistent differences to separate the genitalia of viridifusa from those of northern races panthalon panthalon and panthalon texana or from the sympatric black and ochreous-yellow morph described as flavata and herein synonymized.

FEMALE.—Similar to the male except slightly larger.

FEMALE GENITALIA (cf. Figure 15).—The same comments apply as noted for the male genitalia above.

TYPE.—Holotype female. NMNH, Smithsonian Institution.

TYPE-LOCALITY.—Castro, Parana [Brazil].

HOST PLANTS.—None recorded.

DISTRIBUTION (Map 2).—Southern Brazil, Northern Argentina, Paraguay, and Bolivia.

REMARKS.—On the basis of almost identical geographical distribution and genitalic similarity, we are suggesting by our synonymy in this species that the southern South American populations of viridifusa are a distinct race of panthalon and are comprised of two morphs, one black and the other yellow. Jones (1908) described both morphs (castrensis and flavata) from Castro, Parana. Likewise, Schrottky (1912) described both morphs (nigricornis and fulvitarsis) from Bompland, Misiones. Schaus’ name viridifusa prevails by priority for both morphs. If, at a future date, the yellow morph proves to be a valid species, the name flavata Jones would apply.

MAP 2.—Distribution of Horama panthalon viridifusa (Schaus).

We cannot be certain the two morphs are conspecific until breeding experiments are performed. All evidence presently available to us strongly supports our suggestion. The white markings of the black morph are identical to those found in the yellow morph. The absence of the yellow markings in the black morph might possibly be attributed to a single gene mutation. We have compared localities and dates of both morphs and found specimens with identical data from Bompland, Tucumán, and Villa Nouges (Tucumán), Argentina; from Cochabamba and San Julian, Bolivia, and from Guaraní, Salobra, Ponta Grossa, and Castro, Brazil.

The venation of both morphs is identical except that Cu_1 + Cu_2 is sometimes forked in the hind wing of the black morph and is usually united in the yellow morph. Judging from the variability in wing venation throughout the genus, we suspect the Cu_1 + Cu_2 variation is an artifact of the small sample size.

SPECIMENS EXAMINED (56 males, 30 females).—ARGENTINA: Bompland, 5 May, BM (NH); Tucumán, NMNH, BM(NH): May, IML; Villa Nougues (Tucumán), Jan., March, IML; San Pablo, Quinta Mendez, May, IML; Salta, Rosario de la Frontera, El Morenillo. Feb., March, IML.

BOLIVIA: Chiquitos, S. Julian, 400 m, May, BM(NH); Cochabamba, 2600 m, 14 Dec, 3, 11 Jan., SMM; Prov. del Sara, July, CM; Rio Burmejo to R. Pilcomayo, Dec. BM (NH).

BRAZIL: Matto Grosso, Salobra, 20–23 July, 24 Aug.-6 Sept., 18–29 Oct., USP; Parana, Castro, NMNH; Ponta Grossa, 25 Nov., 18–23 Dec, USP; Rio de Janeiro, Angra dos Reis, Faz. Japuhyba, 31 Oct., USP; Rio Grande do Sul, Guaraní, 7, 11, 29 April, CU.

PARAGUAY: Dept. Guaira, Col. Independencia, 23 Oct., SMM; Puerto Cantera, 10 Oct., BM(NH).

Horama tarsalis Walker

FIGURES 4a,b, 16; PLATE 2: FIGURE 9; MAP 3

Horamia [sic] tarsalis Walker, 1856:1633.

Mastigocera tarsalis.—Butler, 1876:373.

Drucea tarsalis.—Kirby, 1892:130.

Horama tarsalis.—Hampson, 1898:420, fig. 220.—Zerny, 1912: 122.—Draudt in Seitz, 1916:144, pl. 21: row h.

MALE (Plate 2: figure 9).—Head olive brown. Frons with ochreous-orange spot. Palpi obliquely upturned not reaching vertex; third segment slightly porrect; first segment rough ochreous orange; second and third segments smooth, olive brown. Antennae dark olive brown with blue tinge, long basal and mesal pectinations becoming slightly serrate at tips; tips orange and naked. Patagia olive brown with ochreous-orange spots laterally and subdorsally. Tegulae olive brown. Thoracic disc olive brown with four ochreous-orange spots. Pectus olive brown with ochreous-orange spots above midcoxa. Abdomen dark olive brown with two rows of ochreous spots on lateral edges of all segments; first tergite bulbous laterally with ochreous-orange spots on medial margins and below. Legs olive brown, coxae with ochreous-orange spot laterally. Hind tibiae with olive brown, hirsute scales from spurs to middle of tarsi, tips ochreous orange. Forewing olive brown suffused with dusky slate blue scales at anal angle; ochreous-orange spots at humeral angle and on radius at base; hind wing dusky slate blue with scattering of brown scales, costal margin brown, dorsum of hind wing with white fringe. Underside: both wings olive brown mixed with dusky slate blue. Venation (Figure 25). Alar expanse 33 mm.

MALE GENITALIA (Figure 4a,b).—Similar to panthalon (cf. Figure 3a,b). Uncus broader, saccus longer, anellus with dorsal pair of sclerotized rods. Ventral convex plate (= juxta) thinly sclerotized laterally. Valva with dorsal process broader and ventral process membranous and shorter than in panthalon. Sacculus of valva with thickened setae.

FEMALE.—Only known specimen is the holotype in the BM (NH). It appears to closely resemble the male as described above.

FEMALE GENITALIA (Figure 16).—Lamella post-vaginalis more closely associated with lamella antevaginalis than in panthalon. Sinus vaginalis a narrow sclerotized pocket with ostium bursae opening at midpoint ventrally. Ductus seminalis opens on ductus bursae. Thickened folds on corpus bursae may be homologous with spines seen in panthalon.

TYPE.—Holotype female, BM (NH).

TYPE-LOCALITY.—Unknown.

HOST PLANTS.—Unknown.

DISTRIBUTION (Map 3).—Only known record is from Haiti. May possibly be endemic on Hispanola.

REMARKS.—An affinity between H. tarsalis and H. panthalon is suggested by the resemblance of the male and female genitalia. The similarity in shape of the valvae and uncus is greater between these two species than between any others in the genus.

MAP 3.—Distribution of Horama grotei Butler, H. pretus (Cramer), H. tarsalis Walker, H. pennipes (Grote), H. oedippus (Boisduval).

SPECIMENS EXAMINED (1 male, 1 female).—HAITI: Port-au-Prince, 15–21 April, AMNH. No locality: female holotype, BM (NH).

Horama pennipes (Grote)

FIGURES 5a–c, 17; PLATE 2: FIGURE 10; MAP 3

Callicarus pennipes Grote* 1866:182; 1867:310, 330, pl. 5: fig. 3.—Butler, 1876:372.—Gundlach, 1881:236. Saalmüller in Möschler, 1890:349.

Phylloecia pennipes.—Kirby, 1892:129.

Horama pennipes.—Hampson, 1898:419.—Zerny, 1912:121.—Draudt in Seitz, 1916:143.

Horamia [sic] plumosa Herrich-Schäffer, 1866:113.—Saalmüller in Möschler 1890:349 [as synonym of Burtia rubella]. [Type-locality: Cuba. Type: Not located.]

Horama plumosa.—Kirby, 1892:129 [as synonym of Phylloecia pennipes.]

MALE (Plate 2: figure 10).—Head black. Frons with two white, diffuse spots below antennae and one at vertex between antennae. Eyes bordered behind by ochreous-yellow stripes. Palpi white, obliquely upturned, tips porrect; upper surface of second segment and entire third segment black. Antennae black, serrate with slight dilation beyond middle, tips recurved. Patagia black with lateral white spots and two subdorsally. Tegulae black, medial margins white interspersed with some yellow, anterior margins with a lateral ochreous-yellow spot. Thoracic disc black with scattered yellow and white on posterior margin. Pectus black interspersed with white hirsute scales, white dots on each epimeron, ochreous-yellow spot on mesopleuron. Abdomen with lateral bulbs of first tergite white and ochreous-yellow spots on medial margins, center of first tergite black with white dot on anterior margin; remaining tergites black with a dorsal series of white spots obsolescent on terminal segments, pleurites black with a series of white spots preceded by ochreous yellow on first two segments. Sternites white with narrow black lateral margins. Legs black, variously streaked with white; all coxae white, mid and hind coxae with ochreous-yellow spots laterally; hind tibiae banded with black hirsute scales between spurs to middle of tarsus; tips of hind tarsi white. Forewing fuscous black with semidiaphanous streak through middle of cell and below to 2A; spot between M_3 and Cu_2 beyond cell with few persisting scales; white spot at humeral angle. Hind wing fuscous black, faint semidiaphanous streak below cell, costal margin gray, fringe white. Underside: both wings fuscous black with white scales scattered along veins at base. Venation (Figure 26). Alar expanse 26 mm.

MALE GENITALIA (Figure 5a–c).—The homologies are uncertain, but the uncus is bifurcated and the gnathos may consist of both the lateral bulbs on the tegumen and the submedial pair of upturned processes through which the tuba analis passes. The anellus is a sclerotized cone in the center of the diaphragma with the ventral edge extending to the valvae. Saccus long. Aedeagus sharply bent.

FEMALE.—We have seen one specimen from Yateras, Cuba. It resembles the male in all respects except in being slightly larger. Alar expanse 30 mm.

FEMALE GENITALIA (Figure 17).—Sinus vaginalis encircled by prominent sclerotized triangular hood of lamella postvaginalis; ostium bursae at bottom of shallow pouch; ductus seminalis attaches on cervix bursae; two accessory bursae present; interior surface of corpus bursae covered with inward directed spines.

TYPE.—Holotype male, Academy of Natural Sciences, Philadelphia.

TYPE-LOCALITY.—Cuba.

HOST PLANTS.—None recorded.

DISTRIBUTION (Map 3).—Known only from Cuba.

REMARKS.—Until the discovery of H. zapata, this species was unique in the genus for the semidiaphanous streak on the forewing. It is possibly related to H. zapata if distribution and wing scaling are considered, but the antennae differ noticeably by being serrate rather than pectinate as in zapata. Horama plumipes might also be related by virtue of the black and white color pattern, the shape of the hind wing, and the similar appearance of the male genitalia. Horama pennipes may ultimately prove to be a species of Saurita. Possibly, too, Callicarus Grote should be resurrected and H. pennipes returned to it as the type-species. We have deferred such action pending further definition of the ctenuchid genera.

SPECIMENS EXAMINED (4 males, 1 female).—CUBA: Oriente: Alto de Cardero, Turquino, June, PAD; Cueva de Aura, 3700 ft, MCZ; Yateras, PAD. Pinar del Rio: Carabalitas, Guanahacabibes, 4 Oct, PAD.

Horama plumipes (Drury)

FIGURES 6a–c, 18a,b; PLATE 3: FIGURE 13; Map 4

Sphinx plumipes Drury, 1773:47, pl. 27.

Aglaope plumipes.—Westwood, 1837:51, pl. 27: fig. 3.

Euchromia (Horamia) plumipes.—Walker, 1854:252.—Clemens [in part], 1860:546 [as “Variety?, Walker, 252”].—Clemens in Morris, 1862:275.

Horamia [sic] plumipes.—Herrich-Schäffer, 1866:114. Callicarus plumipes.—Butler, 1876:372; 1877:25, pl. 8: fig. 2.—Druce, 1884:49; 1897:338.

Phylloecia plumipes.—Kirby, 1892:129.

Horama plumipes.—Hampson, 1898:419, fig. 218.—Zerny, 1912:121.—Draudt in Seitz, 1916:143: pl. 21: row h.

Phylloecia punctata Guérin, 1844:504.—Kirby, 1892:129. [Type-locality: Bay of Campeche. Type: Lost.]

Euchromia (Macrocneme) punctata.—Walker, 1854:249.

Callicarus punctata.—Butler, 1876:372.

Callicarus punctatus.—Druce, 1897:338.

Horama jalapensis Neumoegen, 1890:63.—Kirby, 1892:131.—Druce, 1897:339. [Type-locality: Jalapa, Mexico. Type: Holotype female, NMNH, Smithsonian.]

MALE.—Head black with white spot between antennae and behind eyes on occiput. Palpi upturned not reaching vertex, white with black band at juncture of first and second segments, third segment very short. Antennae black, serrate, slightly dilated beyond middle, tips white and recurved. Patagia black with paired white spots laterally and subdorsally. Tegulae black with white midstripe. Thoracic disc black with four white spots. Pectus black with white spots on epimerons and white patches below wings. Abdomen black with violet-blue iridescence, first tergite with white spots on lateral bulbs and one at center, second tergite with medial white spot on foremargin and lateral pair on hind margin; third tergite with white spot at center, third through eighth tergites with transverse pale yellow, slightly iridescent bands across middle of each segment; first and second sternites white on posterior half, last sternite white. Legs black, fore coxae with large white spot, remaining segments variously spotted, hind tibia banded with white at middle, distal half with three rows of long, black, hirsute scales extending to middle of tarsus, tip of tarsus white. Forewing black with white spot at humeral angle and at base of cell; hind wing black with white patch at base. Underside: both wings black with white streak below M_3 on forewing. Venation (Figure 27). M_3 and Cu_1 + Cu_2 in hind wing are occasionally slightly connate. Alar expanse 34–36 mm.

MALE GENITALIA (Figure 6a–c).—Uncus reduced and nonhoodlike. Short arms of gnathos closely attached laterally to tegumen. Valvae without long processes. Anellar plate conelike and occupying most of diaphragma, dorsal arms reaching tegumen. Saccus broader than in pennipes. Aedeagus bent at middle, followed distally by row of dentate spines.

FEMALE (Plate 3: figure 13).—Similar to the male except legs are entirely black with a small white spot on coxae. Alar expanse 39–42 mm.

FEMALE GENITALIA (Figure 18a,b).—Genital plate with ostium bursae forming a sclerotized cone, slightly curved at juncture with ductus bursae. Ductus seminalis attaches on cervix bursae. Corpus bursae largely covered by signa of inward directed spines. A single accessory bursa present.

TYPE.—Lost.

TYPE-LOCALITY.—Bay of Honduras.

HOST PLANTS.—None recorded. Adults have been collected visiting flowers of Baltimora recta (Compositae) in Costa Rica.

DISTRIBUTION (Map 4).—Southern Texas, Mexico, and Central America to Panama.

REMARKS.—This species shows little resemblance to other members of the genus except possibly H. pennipes or H. zapata. We are leaving it in Horama because Cu_1 + Cu_2 of the hind wing is long stalked and M_2 is strong.

SPECIMENS EXAMINED (32 males, 39 females).—UNITED STATES: Texas: College Station, 3 Sept., NMNH.

MEXICO: Chiapas: Comitán, 20 Aug., UCB, Isth. of Tehauntepec, MCZ; Portugal, 7 mi SE Simojovel, 17 July, UCB; Ocozocoautla, 2700 ft, 26–28 Sept., CAS. Distrito Federal, MCZ. Guerrero: Acapulco, MCZ. Veracruz: Coatepec, NMNH; Córdoba, 24 April, 9 May, NMNH; Jalapa, April–June, SMC, BM(NH), NMNH; Misantla, April-May, BM (NH); Mozorongo [Motzorongo ?], 6 June, NMNH; Orizaba, May, July, AMNH; Santa Rosa, Aug., NMNH; Yucatan: Chichén-Itzá, June, MCZ; Valladolid, BM (NH).

BRITISH HONDURAS: Toledo District: Punta Gorda, May, June, BM(NH); Rio Grande (BMNH); Castile [estate, 17°24′N,88°39′W], June, BM(NH).

GUATEMALA: Baja Verapaz: S Geronimo [San Jerónimo], BM(NH). Izabel: Cayuga, April-Sept., NMNH, CM. Guatemala: Guatemala City, BM (NH).

HONDURAS: Atlantida: Tela, Lancetilla, MCZ, CU, MCZ. Cortés: Puerto Cortez, 2 Aug., MCZ; San Pedro Sula, BM(NH).

NICARAGUA: Chontales, BM (NH).

COSTA RICA: Alajuela: Mount Poas, May, NMNH. Guanacaste: “Avangarez,” [Abangares ?], July, BM (NH); La Pacifica, 4 km NW Cañas, 23 June, UCB; “Puntarenas,” AMNH. “Sitio”: [Sitio de Avance ?], Feb., CM.

PANAMA: Canal Zone, Madden Dam, 5 May, MCZ.

Horama diffissa Grote

FIGURES 7a–c, 19; PLATE 2: FIGURES 11, 12; MAP 4

Horama diffissa Grote, 1866:181; 1867:310, 330, pl. 5: fig. 2.—Gundlach, 1881:235.—Kirby, 1892:131.—Hampson, 1898: 421.—Zerny, 1912:121.—Draudt in Seitz, 1916:144.

Horama diffusa [sic].—Butler, 1876:373.

Horama diffisa [sic] Saalmüller in Möschler, 1890:349.

Horamia [sic] pretellus Herrich-Schäffer, 1866:113. [Type-locality: Cuba. Type: Not located.]

Horama pretellus.—Kirby, 1892:131 [as synonym of H. diffissa].

MALE (Plate 2: figure 11).—Head dark brown with pale yellow spots covering frons, vertex, and occiput behind eyes. Palpi yellow, third segment moderately porrect and mostly brown above. Antennae yellow with dark brown bands at base and in swollen area beyond middle; weakly serrate tips recurved and naked. Patagia ochreous yellow, sometimes with oblique dark brown stripe. Tegulae woody brown. Thoracic disc woody brown, immaculate. Pectus dark brown with yellow spots above coxae. Abdomen with first tergite white, sides bulbous interrupted across middle by transverse ochreous-yellow stripe, center of first tergite with medial white spot enclosed by yellow and posterior margin woody brown; second and third tergites dark brown with medial yellow spot on anterior margin of second segment and ochreous-yellow spots mixed with white laterally; remaining tergites woody brown; first sternite dark brown; second sternite white; remaining sternites woody brown with yellow margins laterally. Legs yellow; coxae with proximal white spots; dark brown bands separating femora from tibiae and tibiae from tarsi; hind tibiae with dark brown, hirsute scales between spurs, hind tarsi ochreous yellow with row of hirsute scales. Forewing tawny, ochreous-yellow spot at humeral angle; hind wing ochreous yellow with tawny band across apex and termen. Underside: forewing tawny with yellow scaling along costa, inner margin buff yellow; hind wing as upperside. Venation (Figure 28). Alar expanse 33 mm.

MALE GENITALIA (Figure 7a–c).—Overall size small for the genus. Uncus S-shaped process at center; gnathos consisting of unmodified sclerotized areas on lateral tegumen; valve with flat, finger-like process on dorsolateral edge, tip recurved; saccus short; tip of aedeagus with concentric ridges.

FEMALE (Plate 2: figure 12).—Larger than male. Similar in marking except for the following: Head entirely dark brown with occasional yellow scales on frons. Antennae yellow with dark brown bands at middle and at tips; second and third tergites of abdomen dark brown with yellow spots medially on foremargins and laterally on hind margins; third tergite with white spot laterally; remaining tergites woody brown with hind margins fringed with yellow; all sternites dark brown with ochreous-yellow hind margins except on third segment where margin is somewhat paler. Legs with dark brown femora and tibiae; coxae, trochanters, and tarsi yellow; wings similar to male. Alar expanse 38–44 mm.

FEMALE GENITALIA (Figure 19).—Sinus vaginalis surrounded by triangular periostial hood of lamella postvaginalis. Ductus bursae lightly sclerotized. Two accessory bursae present with ductus seminalis entering on the most caudad. Corpus bursae with medial band of sclerotized dots surrounded by border of radiating plicae.

TYPE.—Holotype male (abdomen missing). Academy of Natural Sciences, Philadelphia.

TYPE-LOCALITY.—Cuba.

HOST PLANTS.—None recorded.

DISTRIBUTION (Map 4).—Cuba, Haiti.

REMARKS.—This species is notable in the genus for the sexual dimorphism and for the origin of the ductus seminalis on an accessory bursa in the female.

SPECIMENS EXAMINED (2 males, 3 females).—CUBA: Alto de Cardero, Turquino, June, PAD; Gran Piedra, Caney, May, PAD; Santiago, NMNH.

HAITI: Port-au-Prince, ca. 300 ft, 21–29 March, AMNH.

Horama zapata, new species

FIGURES 8a,b, 20; PLATE 3: FIGURE 16; Map 4

MALE.—Head ochreous yellow with fuscous spot on occiput; palpi white, apical segment dark fuscous with some dark scaling extending onto dorsal surface of second segment, antennae dark fuscous, strongly pectinate, ciliate, tips slightly dentate, recurved and mostly naked; patagia fuscous, white spots laterally and two confluent at center; tegulae fuscous, anterior and medial margins ochreous yellow, thoracic disc fuscous with three pairs of faint white spots along margin of overlapping tegulae; pectus fuscous with ochreous-yellow spots on lateral edges of coxae, and on meso- and metapleura; white spot on mesopleura; abdomen with lateral bulbs of first tergite white, ochreous-yellow spots on laterocaudal margins; center of first tergite fuscous with two ochreous-yellow spots along margins, remaining tergites fuscous except for white margins laterally on segments 2–4; first and second sternites white, remaining segments fuscous; legs fuscous, fore and hind coxae white; foretibiae with white scaling and hind tibiae with white band above spurs and band of dark fuscous hirsute scales between spurs extending to middle of tarsi, tips of hind tarsi white, hind legs long; forewing dull grayish brown with semihyaline streak extending length of cell and below anal fold; hind wing dull grayish brown with semihyaline streak below cell extending to origin of cubitus; base of streak suffused with white. Fringe on both wings white. Underside: both wings similar to upperside. Alar expanse 28 mm.

MALE GENITALIA (Figure 8a,b).—General appearance suggests affinity with tarsalis. Uncus broad, gently curved, widened at base and moveable. Tegumen with two sclerites (= gnathos) laterad at base of uncus. Valva simple with clasper consisting of two lobes, one ventrocaudad is smooth and lightly sclerotized, the second more dorsad is short and club-shaped with inner margin slightly dentate and surface rough. Sacculus a prominent ridge with thickened setae, anellus consists of two sclerotized rods on either side of aedeagus and a lightly sclerotized, helmet-shaped sclerite (= juxta) ventrally; saccus short; aedeagus simple as in tarsalis and panthalon.

MAP 4.—Distribution of Horama plumipes (Drury), H. diffissa Grote, H. zapata, new species.

FEMALE.—Similar to the male but slightly larger.

FEMALE GENITALIA (Figure 20).—Lamella postvaginalis with dorsomedial papilla leading caudally to U-shaped sclerite surrounding ostium bursae; dorsal wall of ostium bursae interrupted by dagger-like lobe; lamella antevaginalis broadly U-shaped, with ventrocaudal edges indented and protuberant; ductus seminalis attached on cervix bursae; corpus bursae with band of irregular ring-shaped signa at middle, interior wall of bursae covered with inward directed spines.

TYPE.—Holotype male, May 1959 (F. Zayas, leg). To be deposited in National Museum, Havana, Cuba, PAD.

Allotype female, May 1959 (F. Zayas, leg). NMNH, Smithsonian Institution.

TYPE-LOCALITY.—San Blas, Cienaga de Zapata, Cuba.

HOST PLANTS.—None recorded.

DISTRIBUTION (Map 4).—Known only from the type-locality in Cuba.

REMARKS.—The semihyaline streaks and the habitus of this species suggest an affinity with H. pennipes. The similarity in genitalia, antennae, and distribution suggest a closer relationship to H. tarsalis. Also to be noted is the resemblance to species in Pseudomya with which it may ultimately prove congeneric.

Horama oedippus (Boisduval)

FIGURES 9a–c, 21; PLATE 3: FIGURES 14, 15; MAP 3

Mastigocera oedippus Boisduval, 1870:81.

Mastigocera oedipus [sic].—Butler, 1876:373.—Druce, 1884:49,pl. 6: fig. 19; 1897:339.

Drucea oedippus.—Kirby, 1892:130.

Horama oedippus.—Hampson, 1898:418.—Fleming, 1959:94.

Horama oedipus [sic].—Zerny, 1912:121.—Draudt in Seitz, 1916:143, pl. 26: row m.—Kaye and Lamont, 1927:10.

MALE.—Head black. Frons and vertex with creamish-yellow spots. Palpi creamish yellow, upturned almost to vertex, third segment black and porrect. Antennae black dorsally, yellow beneath, serrate, dilated at middle, tips recurved. Patagia black with two confluent white spots subdorsally. Tegulae black with inner margins and cephalic spot yellow. Thoracic disc black with white oblique stripes below tegulae, hind margins of mesothorax and metathorax yellow. Pectus black with yellow patches below wings and patagia, each coxa with a silky white spot above. Abdomen banded bluish black with hind margins ochreous yellow; first tergite divided by white transverse stripe, first sternite bluish black with caudal half white. Legs black, variously spotted with yellow; hind tibiae with pronounced band of long, black hirsute scales on basal half; proximal half of tibiae and entire hind tarsi yellow with scales hirsute. Wings dark brown, humeral angle of forewing with white spot superimposed on black patch; costa of hind wing buff yellow. Underside: wings similar to upperside but suffused with few yellow scales at base. Venation (Figure 29). Alar expanse 32–40 mm.

MALE GENITALIA (Figure 9a–c).—Uncus bifurcate with gnathos represented by paired Y-shaped processes beneath. Tegumen with lateral edges modified into long, caudal arms. Anellus shield-shaped, occupying most of diaphragma. Valvae with dorsal arms falcate and patch of modified scales at base. Aedeagus small with phallobase winged; only tip exserted through annular opening (Figure 9c).

FEMALE (Plate 3: figure 14).—Similar to male but larger. Alar expanse 42–46 mm.

FEMALE GENITALIA (Figure 21).—Lamella post-vaginalis modified to form medial periostial protrusion with ostium bursae opening midventrally. Ductus bursae slightly sclerotized. Ductus seminalis enters on cervix bursae. Interior of corpus bursae covered basally with numerous spines; accessory bursa sculptured exteriorly with faint starlike sclerotizations.

TYPE—Holotype, BM (NH). Consists of four wings and two hind legs glued to a card.

TYPE-LOCALITY.—Guatemala and Mexico.

HOST PLANTS.—None recorded. Adult specimens have been collected visiting flowers of Cordia curassavica and C. inermis [Boraginaceae] in Costa Rica.

DISTRIBUTION (Map 3).—Baja California, Mexico, Guatemala, British Honduras, Costa Rica, and Trinidad.

REMARKS.—This species has a notable resemblance to panthalon texana. Its distribution overlaps with p. texana in Baja California and southern Mexico. It is possible that the type-specimen of oedippus may, in fact, be p. texana. The latter is much more common in collections than oedippus and its hind legs are never as plumose as oedippus. The body of the oedippus holotype has been destroyed and what remains is four wings and a pair of hind legs glued to a card. The wings are indistinguishable from those of p. texana and the plumose scales of the hind legs are only moderately long as in p. texana rather than being long and bushy as in oedippus. If the type abdomen were available, the transverse white stripe on the first abdominal tergite would readily have separated oedippus. Boisduval makes no mention of the stripe in his original description. In the absence of more conclusive evidence and in the interest of stability we are maintaining the oedippus designation. Further studies on Lepidoptera scales and venation with the aid of a scanning electron microscope may someday help resolve the question.

The senior author has collected a mating pair in Quintana Roo, Mexico, flying midmorning above the forest canopy. Other mating pairs are recorded from Magdalena Island, Baja California; X-Yaaxchexlabpax [Mpio. Tizimín], Yucatán; and Trinidad, BWI.

Several variants in the abdominal pattern of oedippus should be noted. One male (Plate 3: figure 15) in the NMNH has the caudal tergites uniformly tawny in color. No other specimens have been found with this pattern. Occasionally specimens occur with the abdominal sternites entirely yellow.

SPECIMENS EXAMINED (12 males, 16 females).—MEXICO: Baja California Sur: Magdalena Island, Tres Marias Islands 15 Dec, NMNH, AMNH. Chiapas: 8 mi W Navenchauc [between San Cristóbal and Chiapas], 1 April, UCB. Sinaloa: Venadio [Venadillo?], NMNH. Veracruz: Coatepec, NMNH;Jalapa, NMNH. Yucatán: Valladolid, BM (NH); X-Yaaxchexlabpax [Mpio. Tizimín], July, CM. Quintana Roo: Ruins at Cobá, 29 Nov., in copulo, NMNH.

BRITISH HONDURAS: Belize, NMNH; no specific locality, BM(NH).

GUATEMALA: Baja Verapaz: S Geronimo, BM (NH).

COSTA RICA: Guanacaste: 4 mi NW Cañas, La Pacifica, 5 Sept., UCB; Comelco, 8 km NW Bagaces, 31 Aug., UCB.

TRINIDAD: Rock, Peñal, and Moruga roads, mostly through forest, Sept., OX.

Reestablishment of the Genus Poliopastea Hampson

During the course of this review, as well as related studies of the genus Macrocneme, it has become evident that a number of species previously placed in Horarna and Macrocneme possess characteristics which relate them to each other more closely than to either of the above two genera in which they have been included. In addition, these features are of sufficient magnitude, in our opinion, to warrant establishment of a separate genus. Fortunately, one of the species involved, P. plumbed Hampson, was originally designated as the type-species of Poliopastea, a genus described by Hampson (1898) and subsequently synonymized under Macrocneme by Fleming (1957).

The genus Poliopastea is characterized as follows: It belongs in the Euchromiinae by having M_2 of the hind wing absent or rudimentary. The markings of the head, patagia, tegulae, and first abdominal tergite are often metallic blue or blue white, except in P. mirabilis and P. cyanescens where the markings are metallic green. In the genus Macrocneme (sensu stricto) these markings are characteristically white with little or no iridescence. In the males, the first, second, and third abdominal sternites are modified to form what has been called a "ventral valve" (Figure 11). The first sternite is developed into a flap that covers a pouch formed by the second and third sternites. Inside, the pouch contains a mass of long, white scent scales. In the females a small sclerotized pouch (Figure 12) occurs between the sixth and seventh abdominal sternites, which apparently serves to receive the tip of the right valva of the male during copulation; whereas, in Horama and Macrocneme (sensu stricto) the valvae are symmetrical. In the male genitalia of Poliopastea the valvae are asymmetrical with the right valva elongate and positioned midventrally rather than laterally and the left valva short and positioned laterally (Figure 10c). The tegumen is often modified by a spine-tipped process on the right side (Figure 10a). The aedeagus with the vesica everted is very large, virtually twice the size of the combined vinculum and tegumen. The apex of the vesica always terminates in a large cornutus (Figure 10b).

When photographed under ultra-violet illumination the iridescent scales in Poliopastea may reflect positively (Figure 18). According to D. R. Davis (pers. comm.), who is currently conducting preliminary studies on ultraviolet reflection in moths, no other moth scales are presently known to reflect U-V light. The biological significance of this finding is unknown, but it suggests that a polymorphic species complex may be present and that the full range of member species may only become known with further U-V studies. The presence of these U-V scales on the venter, if verified, would imply an interesting mating behavior.

The following presentation of the taxa included in the genus Poliopastea is not intended to serve as more than a preliminary survey of the group. All the types were cursorily examined. Only in some cases were the genitalia compared. Obvious synonymies have been included where appropriate. For those species where the identity or past synonymy was questionable, we have deferred further treatment and merely listed the names in new combination. There may be a number of additional new synonymies and combinations, as well as new species, when a thorough study of the type-specimens and analyses of additional material is completed. In the meantime, the present reestablishment of the genus provides a more appropriate treatment of the included taxa and a starting point for additional revisionary studies.

Genus Poliopastea Hampson

Poliopastea Hampson, 1898:336. [Type-species: Poliopastea plumbea Hampson, 1898, by original designation.]

Chrysocneme Draudt, 1917:204. [Type-species: Chrysocneme mirabilis Draudt, 1917, by monotypy. New synonymy.]

Poliopastea anthracina (Klages), new combination

Saurita anthracina Klages, 1906:531.

Poliopastea ockendeni Rothschild, 1911:40. [New synonymy.]

TYPE-LOCALITY.—Suapure, Venezuela (anthracina;); La Union, Peru (ockendeni).

TYPES.—Holotype female, National Museum of Natural History, Smithsonian Institution (anthracina); holotype male, British Museum (Natural History) (ockendeni).

Poliopastea auripes (Walker), new combination

Euchromia auripes Walker, 1854:250.

TYPE-LOCALITY.—Honduras.

TYPES.—Holotype male, British Museum (Natural History).

Poliopastea chrysotarsia (Hampson), new combination

Macrocneme chrysotarsia Hampson, 1889:324.

TYPE-LOCALITY.—Taboga Island, Panama.

TYPE.—Holotype male, British Museum (Natural History).

Poliopastea clavipes (Boisduval), new combination

Mastigocera clavipes Boisduval, 1870:81.

TYPE-LOCALITY.—Mexico.

TYPE.—Holotype male, British Museum (Natural History).

REMARKS.—Although the yellow and brown ground color of the wings and abdomen are anomalous in the genus, the blue metallic spots, the ventral pouch (Figure 11), and characteristic male genitalia (Figure 10a–c) definitely place this species in Poliopastea. When photographed under U-V light the yellow pattern disappears (cf. Figures 17 and 18, Plate 3) and the species then looks very similar to laconia and laciades. Both laciades Schaus and clavipes Boisduval occur sympatrically throughout their ranges and the male genitalia appear identical, suggesting a polymorphic species.

Poliopastea coelebs Bryk

Poliopastea coelebs, Bryk, 1953:239.

TYPE-LOCALITY.—Amazonas (Brazil).

TYPE.—Holotype male (poor condition), Naturhistoriska Riksmuseet, Stockholm.

REMARKS.—This species was overlooked by Fleming (1957) when he synonymized Poliopastea with Macrocneme. It has been identified as errans Hübner (= eacus Cramer) in many collections. The forewings are mostly a suffused metallic blue, which may dull in older specimens. There is no distinct band of brassy scales as described for eacus. It is likely this species is a synonym of pusilla Butler; however, final judgment should await additional study.

Poliopastea cyanescens (Dognin), new combination

Macrocneme cyanescens Dognin, 1921:7.

TYPE-LOCALITY.—Medina, east Colombia, 500 m.

TYPE.—Holotype male, National Museum of Natural History, Smithsonian Institution.

REMARKS.—This species is allied to mirabilis Draudt but lacks the scarlet and/or yellow tufts on the thorax and first abdominal tergite.

Poliopastea cyllarus (Druce), new combination

Macrocneme cyllarus Druce, 1896:29.

TYPE-LOCALITY.—Chiriqui [Panama].

TYPE.—Lectotype female, Zoologisches Museum, Humboldt-Universität, Berlin.

REMARKS.—The original description lists both Chiriqui and Taboga Island as the locality for cyllarus. Hampson (1898) cites cyllarus as a synonym under indistincta and lists the type as being from Chiriqui. We accept Hampson’s indication as the designation of that specimen as the lectotype.

Poliopastea errans (Hübner), new combination

Sphinx eacus Cramer [1782], 4:129, 249 [index], pl. 357: fig. b [preoccupied by Sphinx eacus Cramer [1780], 3:166, 174 [index], pl. 285].

Pseudomya errans Hübner, 1819:124 [nomen novum].

TYPE-LOCALITY.—Unknown.

TYPE.—Lost.

REMARKS.—This species is most likely allied to vittata or some other as yet unstudied species from northern South America. The Cramer figure of eacus does not match his original description, which states that “the dark green band of the forewings has a brassy lustre.” The accompanying illustration shows a narrow, bluish band in the area of the cell and no indication of any metallic brassy sheen. Since none of the plates are illustrated with metallic pigments it may be reasonable to speculate that the metallic pigments that were available at that time were unsuitable for use in plate reproductions.

Poliopastea esmeralda (Butler), new combination

Macrocneme esmeralda Butler, 1876:371.

TYPE-LOCALITY.—Ega [Teté], Brazil.

TYPE.—Holotype female, British Museum (Natural History).

REMARKS.—This species may be conspecific with indistincta since both species are from northern Brazil and were described by Butler on the same page.

Poliopastea evelina (Druce), new combination

Macrocneme evelina Druce, 1884:48, pl. VIII: fig. 4.

TYPE-LOCALITY.—Volcan de Chiriqui, Panama, 4000 to 6000 ft.

TYPE.—Holotype female, British Museum (Natural History).

Poliopastea hesione (Druce), new combination

Macrocneme hesione Druce, 1888:239.

TYPE-LOCALITY.—Volcan de Chiriqui, Panama.

TYPE.—Holotype female, Zoologisches Museum, Humboldt-Universität, Berlin.

Poliopastea indistincta (Butler), new combination

Macrocneme indistincta Butler, 1876:371.

Macrocneme indistincta hampsoni Schrottky, 1910:151.

Macrocneme hampsoni Schrottky, by Hampson, 1914:206. [New synonymy.]

Macrocneme sura Schaus, 1901:42. [New synonymy.]

TYPE-LOCALITY.—Para, Brazil (indistincta); Rio Grande do Sul, Brazil (hampsoni); Petropolis, Brazil (sura).

TYPE.—Holotype female, British Museum (Natural History) (indistincta); holotype male, British Museum (Natural History) (hampsoni); holotype male, National Museum of Natural History, Smithsonian Institution (sura).

REMARKS.—This species has been seen only from Brazil. It may be conspecific with esmeralda Butler as mentioned earlier. Schrottky gave Hampson’s indistincta Ab. 1 the name hampsoni on the basis of the absence of white fringes on the wings. Our examination has shown that the amount of white on the palpi and on the fringes of the wing and ventral pouch can vary considerably. The genitalia show no differences between the two; thus, we see no justification for maintaining hampsoni as a distinct species.

Poliopastea jalapensis (Schaus), new combination

Callicarus jalapensis Schaus, 1889:89.

TYPE-LOCALITY.—Jalapa, Mexico.

TYPE.—Holotype female, National Museum of Natural History, Smithsonian Institution.

Poliopastea laciades (Schaus), new combination

Callicarus laciades Schaus, 1889:88.

Callicarus misitra Schaus, 1889:88. [New synonymy.]

TYPE-LOCALITY.—Paso San Juan, Vera Cruz, Mexico (laciades); Paso San Juan, Vera Cruz, Mexico (misitra).

TYPE.—Lectotype male, National Museum of Natural History, Smithsonian Institution (laciades); holotype male, National Museum of Natural History, Smithsonian Institution (misitra).

REMARKS.—Schaus customarily noted the word “type” on the label of the specimen used to prepare the description. We have selected, labeled, and here designate that specimen as the lectotype.

Poliopastea laconia (Druce), new combination

Callicarus laconia Druce, 1884:49, pl. VI: fig. 18.

TYPE-LOCALITY.—Valladolid, Yucatán, Mexico.

TYPE.—Holotype female, British Museum (Natural History).

REMARKS.—Forbes (1939) suggests that misitra and laciades may be merely color forms of this species.

Poliopastea lamprosoma (Hampson), new combination

Macrocneme lamprosoma Hampson, 1914:208, pl. XI: fig. 10.

TYPE-LOCALITY.—La Chorrera, Panama.

TYPE.—Lectotype male, British Museum (Natural History).

REMARKS.—This species is very similar to cyllarus but may be distinguished by the totally black hind tarsi. In his catalog Hampson uses the word "type" in a general sense to indicate the specimens at hand. The word order in his descriptions is an unreliable guide to the type-specimen. However, he would label one specimen with the word "type" and it is this specimen which we are designating as the lectotype.

Poliopastea maroniensis (Schaus), new combination

Macrocneme maroniensis Schaus, 1905:188.

TYPE-LOCALITY.—St. Jean, Maroni River, French Guiana.

TYPE.—Holotype male, National Museum of Natural History, Smithsonian Institution.

REMARKS.—This species is known only from the type-specimen and may ultimately prove to be the male of hesione, Druce. Like hesione, it is rare in collections.

Poliopastea mirabilis (Draudt), new combination

Chrysocneme mirabilis Draudt, 1917:205.

Macrocneme apollinairei Schaus, 1928:56. [New synonymy.]

Macrocneme xantholopha Dognin, 1919:4. [New synonymy.]

TYPE-LOCALITY.—Pacho, Colombia, 2200 m (mirabilis); Vergara, Colombia (apollinairei); Chocó, near Bogotá, Colombia (xantholopha).

TYPE.—Holotype male, British Museum (Natural History) (mirabilis); holotype male, National Museum of Natural History, Smithsonian Institution (apollinairei); holotype male, National Museum of Natural History, Smithsonian Institution (xantholopha).

REMARKS.—These three names are all associated with a species collected in the Department of Cundinamarca, Colombia. The difference between the scarlet tufts of mirabilis and the yellow tufts of xantholopha is apparently local variation because some specimens show an intermediate condition. For example, the tufts on the first abdominal tergite of the type-specimen of mirabilis are yellow basally and scarlet beyond. The hind tarsi of both types are bright yellow and the metallic markings are the same.

Poliopastea nigritarsia (Hampson), new combination

Macrocneme nigritarsia Hampson, 1898:326, pl. XII: fig. 24.

TYPE-LOCALITY.—Panzos, Verapaz, Guatemala.

TYPE.—Lectotype male, here designated, British Museum (Natural History).

Poliopastea nordina (Schaus), new combination

Macrocneme nordina Schaus, 1901:41.

Macrocneme nordina form altilis Draudt, 1916:104. [New synonymy.]

TYPE-LOCALITY.—Guadalajara, Mexico (nordina); Guerrero, Mexico (nordina altilis).

TYPE.—Lectotype female, here designated, National Museum of Natural History, Smithsonian Institution (nordina); unknown (nordina altilis).

Poliopastea obscura (Wallengren), new combination

Tipulodes obscura Wallengren, 1860:40.

Chloropsinus nox Druce, 1898:208.

TYPE-LOCALITY.—Guayaquil, Ecuador (obscura); St. Lucia, Ecuador (nox).

TYPE.—Holotype male, Naturhistoriska Riksmuseet, Stockholm (obscura); holotype female, British Museum (Natural History) (nox).

Poliopastea plumbea Hampson

Poliopastea plumbea Hampson, 1898:337, pl. XII: fig. 26.

Macrocneme albitarsia Hampson, 1898:325. [New synonymy.]

TYPE-LOCALITY.—Parantins, Lower Amazon, Brazil (plumbea); Tabatinga, Amazon, Brazil (albitarsia).

TYPE.—Holotype male, British Museum (Natural History) (plumbea); holotype female, British Museum (Natural History) (albitarsia).

REMARKS.—This is the type-species of Poliopastea and was transferred to Macrocneme by Fleming (1957) when he synonymized Poliopastea. Examination of the type-specimen of albitarsia indicates that it is merely the female of plumbea.

Poliopastea pusilla (Butler), new combination

Euchromia (Macrocneme) eacus [not Cramer, 1782] Walker, 1854:250.

Mastigocera pusilla Butler, 1876:372.

TYPE-LOCALITY.—Para, Brazil.

TYPE.—Holotype female, British Museum (Natural History).

REMARKS.—Butler considered Walker’s identification of eacus to be incorrect and proposed the new name pusilla. If pusilla is ultimately confirmed a valid species, then coelebs Bryk belongs here as a synonym.

Poliopastea splendida (Butler), new combination

Macrocneme splendida Butler, 1876:371.

TYPE-LOCALITY.—Santa Marta, Colombia.

TYPE.—Lectotype male, here designated, British Museum (Natural History).

REMARKS.—This species has been synonymized with indistincta by all previous catalogers. The distribution of the two species suggests to us that this association is unlikely. The species appears to us to be much closer to vittata or cyllarus than to indistincta.

Poliopastea vittata (Walker), new combination

Euchromia vittata Walker, 1854:249.

Macrocneme alesa Druce, 1890:493. [New synonymy.]

Macrocneme caurensis Klages, 1906:540. [New synonymy.]

Macrocneme nigritarsia ab. trinitatensis Strand, 1917:84.

TYPE-LOCALITY.—Para, Brazil (vittata); Bolivia (alesa); Suapure, Venezuela (caurensis); Trinidad (nigritarsia ab. trinitatensis).

TYPE.—Lectotype female, here designated, British Museum (Natural History) (vittata); holotype male, British Museum (Natural History) (alesa); lectotype male, here designated, National Museum of Natural History, Smithsonian Institution (caurensis); holotype female, British Museum (Natural History) (nigritarsia ab. trinitatensis).

REMARKS.—Stand’s trinitatensis, which was synonymized by Fleming (1957), is merely the female of vittata. The white sublateral spots on the abdomen are characteristic markings of the females of this species.

FIGURE 1.—Male genitalia, Horama pretus (Cramer): a, lateral view, aedeagus in situ, left valve b, dorsoventral view.

FIGURE 2.—Male genitalia, Horama grotei Butler: a, lateral view; b, dorsoventral view; c, aedeagus.

FIGURE 3.—Male genitalia, Horama panthalon panthalon (Fabricius): a, lateral view, left valve removed; b, ventral view.

FIGURE 4.—Male genitalia, Horama tarsalis Walker: a, lateral view, left valve removed; b, ventral view, left valve and aedeagus removed.

FIGURE 5.—Male genitalia, Horama pennipes (Grote): a, lateral view, left valve removed, setae omitted; b, ventral view, setae omitted; c, aedeagus.

FIGURE 6.—Male genitalia, Horama plumipes (Drury): a, lateral view, left valve removed; b, ventral view, setae omitted; c, aedeagus.

FIGURE 7.—Male genitalia, Horama diffissa Grote: a, lateral view; b, dorsoventral view; c, aedeagus.

FIGURE 8.—Male genitalia, Horoma zapata, new species: a, lateroventral view, left valve and aedeagus removed; b, aedeagus.

FIGURE 9.—Male genitalia, Horama oedippus (Boisduval): a, lateral view, aedeagus in situ, left valve removed; b, ventral view; c, anellar plate (= anellus + juxta).

FIGURE 10.—Male genitalia, Poliopastea clavipes (Boisduval): a, right lateral view showing tegumen process and right valve, aedeagus removed; b, aedeagus; c, left lateral view showing both valves and tegumen, uncus omitted.

FIGURE 11, 12.—Modifications of abdominal sternites in Poliopastea clavipes (Boisduval): 11, male sternites 1–3 showing intersegmental pocket; 12, female sternites 6–7 showing intersegmental pocket.

FIGURE 13.—Female genitalia, Horama pretus (Cramer): ventral view.

FIGURE 14.—Female genitalia, Horama grotei Butler: ventral view.

FIGURE 15.—Female genitalia, Horama panthalon panthalon (Fabricius): ventral view.

FIGURE 16.—Female genitalia, Horama tarsalis Walker: ventral view. (Drawing courtesy BM (NH).)

FIGURE 17.—Female genitalia, Horama pennipes (Grote): ventral view.

FIGURE 18.—Female genitalia, Horama plumipes (Drury): a, ventral view; b, enlargement of signa spines from wall of corpus bursae.

FIGURE 19.—Female genitalia, Horama diffissa Grote: ventral view.

FIGURE 20.—Allotype female genitalia, Horama zapata, new species: ventral view.

FIGURE 21.—Female genitalia, Horama oedippus (Boisduval): ventral view.

FIGURES 22–25.—Horama pretus (Cramer); 23, H. grotei Butler; 24a, H. panthalon (Fabricius); 24b,c, variants in H. panthalon; 25, H. tarsalis Walker.

FIGURES 26–29.—Horama pennipes (Grote); 27, H. plumipes (Drury); 28, H. diffissa Grote; 29, H. oedippus (Boisduval).

Literature Cited

Barnes, W., and J. McDunnough

1917. Check List of the Lepidoptera of Boreal America. Pages i-viii +1-392. Decatur, Illinois: Herald Press.

Biezanko, C. M., A. Ruffinelli, and C. S. Carbonell

1957. Lepidoptera del Uruguay: Lista anotada de especies. Revista de la Facultad de Agronomia, Montevideo, Uruguay, 46(Dec.):152 pages.

Boisduval, J. A.

1870. Considérations sur des Lépidoptéres envoyés du Guatemala á M. d'l Orza. 100 pages. Paris: Oberthur & Fils.

Brown, F. M.

1941. Some Notes on Four Primary Reference Works for Lepidoptera. Annals of the Entomological Society of America, 34(1):127-138.

Bryk, F.

1953. Lepidoptera aus dem Amazonesgebiete und aus Peru gesammelt von Dr. Douglas Melin und Dr. Abraham Roman. Arkiv för Zoologi, 5(1): 1-268.

Butler, A. G.

1876. Notes on the Lepidoptera of the Family Zygaenidae, with Descriptions of New Genera and Species. Journal of the Linnean Society of London, Zoology, 12(60–62):342–433, 2 plates.

1877. Illustrations of the Typical Specimens of Lepidoptera Heterocera in the Collection of the British Museum. Part I, pages i-xiii+1–62, plates 1–20. London.

Clemens, B.

1860. Contributions to American Lepidopterology, Number 7. Proceedings of the Academy of Natural Sciences of Philadelphia, 12(Nov.):522–547.

1862. Appendix. In J. C. Morris, Synopsis of the Described Lepidoptera of North America, Part I: Diurnal and Crepuscular Lepidoptera. Smithsonian Miscellaneous Collections. Pages i-viii +1-358.

Cramer, P., (and C. Stoll)

1775–1791. Papillons Exotiques des trois parties du monde l'Asie, l'Afrique et l'Amérique rassemblés el décrits par M. Pierre Cramer dessinés sur les originaux, gravés et enluminés sous sa direction. 4 volumes, 400 pages, 42 plates. Amsterdam: S. J. Baalde; Utrecht: Barthelmy Wild. [See F. M. Brown, 1941, and E. L. Todd, 1959, for dating.]

Dewitz, H.

1877. Dämmerungs-und Nachfalter von Portorico, gesammelt von Herrn Consul Krug. Mitteilungen der Münchener Entomologischen Verein, 1:91-96, 1 plate.

Dognin, P.

1912. Hétèrocères nouveaux de l'Amerique du Sud. Part V (June 15), pages 1–12. Rennes: Oberthur.

1919. Ibid., part XVII (Dec. 1), pages 1–12.

Draudt, M.

1916–1919. Syntomidae. Pages 33-230 in volume 6 in Seitz, The Macrolepidoptera of the World. [Introduction by Seitz, pages 33-37.]

Druce, H.

1881. Lepidoptera-Heterocera, volume 1. Volume 39 in Zoology in Godman and Salvin, editors, Biologia Centrali-Americana. xxxi+490 pages.

1891–1900. Ibid., volume 2, 622 pages (text).

1888. Descriptions of New Species of Lepidoptera, Chiefly from Central America. Annals and Magazine of Natural History, series 6, 2:234-242.

1890. Descripitons of New Species of Lepidoptera Heterocera from Central and South America. Proceedings of the Zoological Society of London, pages 493-520, 2 plates.

1896. Descriptions of Some New Genera and Species of Heterocera from Central and Tropical South America. Annals and Magazine of Natural History, series 6, 18:28–42.

1898. Description of Some New Species of Heterocera. Annals and Magazine of Natural History, series 7, 1(3):207–215.

Drury, D.

1770–[1773]. Illustrations of Natural History: Wherein Are Exhibited Upwards to Two Hundred and Forty Figures of Exotic Insects. Volume 1, xxvii + 130 pages, 50 plates. London: B. White. [There is a note in the copy of the British Museum (Natural History) as follows: “. . . names of the insects according to the System of Linnaeus” . . . was issued with volume 2. These names should therefore be dated 1773 (vide vol. 2, p. vi).]

Dyar, H. G.

1902–[1903]. A List of North American Lepidoptera and Key to the Literature of the Order of Insects. United States National Museum Bulletin, 52: viii + 723 pages.

Fabricius, J. C.

1781–[1782]. Species insectorum, exhibentes corum differentias specificas, synonyma, auctorum, loca natalia, metamorphosin, adjectis observationibus, descriptionibus. Volume II, 517 pages (including Appendix). Hamburg and Cologne: C. E. Bohnii.

1793–1794. Entomologia systematica emendata et aucta, secundum classes, ordines, genera, species, adjectis synonymis, locis, observationibus, descriptionibus. Holmiae. Volume III, part I (1793, 487 pages), part II (1794, 349 pages).

Fleming, H.

1957. The Ctenuchidae (Moths) of Trinidad, B.W.I., Part I: Euchromiinae. Zoologica, 42 (part 3, number 10):105–130, 3 plates.

1959. The Ctenuchidae (Moths) of Trinidad, B.W.I., Part II: Ctenuchinae. Zoologica, 44 (part 3, number 6):85-104, 3 plates.

Forbes, W. T. M.

1923. The Lepidoptera of New York and Neighboring States. Cornell University Agricultural Experiment Station, Memoir 68:1–729, illustrated.

1930. Insects of Porto Rico and the Virgin Islands. Heterocera or Moths (excepting the Noctuidae, Geometridae, and Pyralidae). New York Academy of Sciences, 12(1):1-171, 2 plates.

1931. Supplementary Report on the Heterocera or Moths of Porto Rico. Journal of the Department of Agriculture, Puerto Rico, 15(4):339–394, 6 plates.

1939. The Lepidoptera of Barro Colorado Island, Panama. Bulletin of the Museum of Comparative Zoology at Harvard College, 85(4): vii + pages 97-322, 8 plates.

Geyer, C.

1827–1838. Volume 3. In Hübner, Sammlung exotischer Schmetterlinge. 53 plates. Augsburg. [See Hemming, 1937, for dating of plates.]

Griffin, F. J.

1936. The Contents of the Parts of the Dates of Appearance of Seitz’s Macrolepidoptera of the World, Volumes 1–16, 1907-1935. Transactions of the Royal Entomology Society of London, 85(10):243–279.

Griveaud, P.

1964. Faune de Madagascar, XVII: Insectes, Lépidoptéres, Amatidae. ix + 147 pages, 1 colored plate, 309 figures, 2 maps. République Malgache.

1969. Amatidae Nouveaux au peu connus de Madagascar (Lep.). [Extract from] Bulletin de Madagascar, 274 (March): 20 pages + figures. Tanarive: Imprimerie Nationale.

Grote, A. R.

1866. Notes on the Zygaenidae of Cuba, Part I. Proceedings of the Entomological Society of Philadelphia, 6(July): 173–189.

1867. Ibid., part II, with a supplement, 6(Jan.):297-334, plate 5.

1868. On the Synonymy, etc., of Certain Species of American Lepidoptera. Transactions of the American Entomological Society, 2:115–122.

Grote, A. R., and C. T. Robinson

1868. List of the Lepidoptera of North America. Volume I, pages i-xvi. Philadelphia: American Entomological Society.

Guerin-Méneville, F. E.

1824–1844. Iconographie du regne animal de G. Cuvier, au représentation d'apres nature de l'une des espéces les plus remarquebles et sauvent non encore figurées, de chaque genre d'animaux; pouvant servir d'atlas á tous les traites de zoologie. Insectes, pages 1–575 [1829–1838]; Lepidoptera, pages 466–530; Lepidoptera, plates 76–91. Paris: J. B. Bailliere.

Gundlach, J.

1881. Lepidópteros. Part 1 in volume 1 of Contributión á la Entomologia Cubana. 480 pages. Havana: G. Montiel.

1891. Apuntes para la Fauna puerto-Riqueña, Orden Lepidópteros, Part 7. Anales de la Sociedad Española de Historia Natural, Madrid, 20:109–207.

Hampson, G.

1898. Catalogue of the Lepidoptera Phalaenae in the British Museum. Volume 1, xxii+559 pages, 17 plates. London.

1914. Ibid., supplement, volume 1, xxviii+858 pages, 41 plates. London.

Harris, T. W.

1839. Descriptive Catalogue of the North American Insects Belonging to the Linnean Genus Sphinx in the Cabinet of Thaddeus William Harris, M.D., Librarian of Harvard University. American Journal of Sciences and Arts, 36:282-320.

Hemming, F.

1937. Hübner: A Bibliographical and Systematic Account of the Entomological Works of Jacob Hübner and of the Supplements Thereto by Carl Geyer, Gottfried Franz von Frölich, and Gottlieb August Wilhelm Herrich-Schäffer. Volume 1, pages i-xxxiv+ 1–605. London: Royal Entomological Society.

Herrich-Schäffer, G. A. W.

1866. Schmetterlinge aus Cuba. Correspondenzblatt des Zoologisch-Mineralogischen Vereines in Regensberg, 20(8):113–120.

Holland, W. J.

1903. The Moth Book. Pages i–xxiv+10–479; figures 1–263, plates 1–48. New York: Doubleday, Page and Company.

Horn, W. and I. Kahle

1935-1937. Über entomologische Sammlungen, Entomologen, Entomo-Museologie, Teil 1–3: Sonderdruck von Entomologische Beihefte aus Berlin-Dahlem, 2–4 (Dec. 1935, Oct. 1936, and Aug. 1937. vi+536 pages, 38 tables, 3 illustrations.

Hübner, J.

1816–[1826]. Verzeichniss bekannter Schmettlinge [sic]. 431 pages and appendix (pages 1–72). Augsburg. [See Hemming, 1937, page 517, for dates.]

Jones, E. D.

1908. VIII, Descriptions of New Species of Lepidoptera-Heterocera from Southeast Brazil. Transactions of the Royal Entomological Society of London, 56:143–176.

Kaye, W. J., and N. Lamont

1927. A Catalogue of the Trinidad Lepidoptera Heterocera (Moths). Memoirs of the Department of Agriculture, Trinidad and Tobago, 3: viii + 144+xv pages, 2 plates.

Kirby, W. F.

1879. Note on Horama panthalon Fabr. Entomologist’s Monthly Magazine, 16:19.

1892. A Synonymic Catalogue of Lepidoptera Heterocera (Moths), I: Sphinges and Bombyces. Pages i–xii + 1–951. London: Gurney and Jackson.

1904–1908. [New English Facsimile Edition of Hübner’s] Sammlung Exotischer Schmetterlinge (1806). Volume 3, 128 pages, 53 plates. [Edited by P. Wytsman and with additional text by W. F. Kirby.] Brussels: V. Verteneuil & L. Desmet.

Klages, E. A.

1906. On the Syntomid Moths of Southern Venezuela Collected in 1898–1900. Proceedings of the United States National Museum, 29(1434):531-552. [January.]

Lindsey, A. W.

1926. Lepidoptera, Collected by the Barbados-Antigua Expedition from the University of Iowa. University of Iowa Studies in Natural History, 11(7):33–35.

Martorell, L. F.

1945[1948]. A Survey of the Forest Insects of Puerto Rico, Part I. Journal of Agriculture of the University of Puerto Rico, 29(3):70–354. [July.]

1945[1948]. Ibid., part II, 29(4):355-608. [October.]

McDunnough, J.

1938. Check List of the Lepidoptera of Canada and the United States of America, Part I: Macrolepidoptera. [Reprint from the] Memoirs of the Southern California Academy of Sciences, pages 1–272 [including index pages 175–272].

Morris, J. G.

1862. Synopsis of the Described Lepidoptera of North America, Part I: Diurnal and Crepuscular Lepidoptera. Smithsonian Miscellaneous Collections, i-xxviii + 1–358 pages.

Möschler, H. B.

1890. Die Lepidopteren-fauna der Insel Portorico. Abhandlungen der Senckenbergischen naturforschenden Gesellschaft, Frankfurt/Main, 16:69–360, I plate. [As a separate.]

Neumoegen, B.

1890. New Beauties from Near and Far. Entomologica Americana, 6(4):61–64.

Neumoegen, B., and H. G. Dyar

1893. A Preliminary Revision of the Bombyces of America North of Mexico. Journal of the New York Entomological Society, 1(3):97-118.

Obraztsov, N. S.

1966. Die palaearktischen Amata-Arten (Lepidoptera, Ctenuchidac). Veröffentlichungen der Zoologischen Staatssammlung München, 10:1–383, 30 plates. [October.]

Ridgway, R.

1912. Color Standards and Color Nomenclature. iii+44 pages, 53 plates. Washington, D.C.: Published by the author.

Rothschild, W.

1911. New Syntomidae in the Tring Museum. Novitates Zoologica, 18:24–45.

Saalmüller, M.

1890. In Möschler, Die Lepidopteren-fauna der Insel Portorico. Abhandlungen der Senckenbergischen naturforschenden Gesellschaft, Frankfurt /Main, 16: 347–354. [As a separate.]

Schaus, W.

1889. Descriptions of New Species of Mexican Heterocera. Entomologica Americana, 5:87–90.

1901. New Species of Heterocera from Tropical America, I. Journal of the New York Entomological Society 9:40–48.

1904. New Species of American Heterocera. Transactions of the American Entomological Society 30(2):135–178.

1905. Descriptions of New South American Moths. Proceedings of the United States National Museum, 29 (no. 1420): 179-345. [October.]

1924. New Species of Moths in the United States National Museum, Proceedings of the United States National Museum, 65(art. 7): 1–74.

1928. New Species of Lepidoptera in the United States National Museum. Proceedings of the Entomological Society of Washington, 30(3):46–58.

Schrottky, C.

1909. “Mimetische” Lepidopteren ein Beitrag zur Kenntnis der Syntomidae Paraguays. Deutsche Entomologische Zeitschrift, “Iris,” Dresden, 22(2–3): 122–132.

1910. Zweiter Beitrag zur Kenntniss der Syntomidae Paraguay’s. Deutsche Entomologische Zeitschrift, “Iris,” Dresden, 24(6–7): 148-153.

1911. Wespenähnliche Schmetterlinge. Zeitschrift für wissenschaftliche Insektenbiologie, 11:125-129.

1912. Zwei neue Syntomiden von Nord-Argentinien. Deutsche Entomologische Zeitschrift, “Iris,” Dresden, 26(3): 166.

Seitz, A.

1890. Die Schmetterlingswelt des Monte Corcovado. Stettiner Entomologische Zeitung, 51(7–12):258–266. [July-December.]

Stahl, A.

1882. Fauna de Puerto-Rico. Catálogo del gabinete zoológio del Dr. A. Stahl ... Precedido de una clasificación sistemática de los animates que corresponden á esta fauna. 248 pages. Puerto Rico: “Boletin mercantil.”

Strand, E.

1917. Neue und wenig bekannte Nebenformen von Syntomididen. Archiv für Naturgeschichte, 82A(2): 79–86.

Todd, E. L.

1959. The Fruit-Piercing Moths of the Genus Gonodonta Hübner (Lepidoptera, Noctuidae). United States Department of Agriculture Technical Bulletin, 1201, Washington, D.C., July. [Footnote 6, p. 23, in re authorship of P. Cramer (and C. Stoll), 1775-1791.]

Torre-Bueno, J. R. de la

1962. A Glossary of Entomology: Smith’s “An Explanation of Terms Used in Entomology.” Completely Revised and Rewritten . . . and Supplement A, Edited by George S. Tullock. ix + 336 pages, 36 pages (supplement), 9 plates. New York: Brooklyn Entomological Society. [Third printing.]

Travassos, L., Filho

1940. Euchromiidae de Salobra. Arquivos de zoologia da estado de São Paulo 2(9):261–280, 2 plates.

Tuxen, S. L., editor

1970. Taxonomist’s Glossary of Genitalia in Insects. Second revised and enlarged edition. 359 pages. Copenhagen: Munksgaard. [Lepidoptera chapter by A. B. Klots, pages 115–130.]

Walker, F.

1854. Lepidoptera Heterocera. Part 1 (pages 1–278) in List of the Specimens of Lepidopterous Insects in the Collection of the British Museum.

1856. Ibid., part 7, pages 1509–1808.

Wallengren, H. D. J.

1860. Lepidopterologische Mittheilungen. Wiener Entomologische Monatschrift 4(2):33–46.

Westwood, J. O.

1837. Illustrations of Exotic Entomology; Containing Upwards of Six Hundred and Fifty Figures and Descriptions of Foreign Insects Interspersed with Remarks and Reflections on Their Nature and Properties. Volume 2, page 51, plate 27, figure 3. London: Henry G. Bohn. [Facsimile of Drury’s “Illustrations of Natural History” with text changes and additional comments by Westwood.]

Woolcott, G. N.

1923[1924]. “Insectae Portoricensis”: A Preliminary Annotated Checklist of the Insects of Porto Rico, with Descriptions of Some New Species. The Journal of the Department of Agriculture of Porto Rico, 7(1): 139–207 [Lepidoptera].

1936. “Insectae Borinquensis”: A Revised Annotated Checklist of the Insects of Puerto Rico. The Journal of Agriculture of the University of Puerto Rico, 20(1):396–507 [Lepidoptera]. [July.]

1941. Ibid., supplement, 25(2):33–158.

1948[1951]. The Insects of Puerto Rico. The Journal of Agriculture of the University of Puerto Rico, 32(3): “573–748 [Lepidoptera. Heterocera: Moths].

Zerny, H.

1912. Syntomidae. Part 7 in Lepidopterorum Catalogus. 179 pages. H. Wagner, W. Junk, editors. Berlin.

1931. Beiträge zur Kenntnis der Syntomiden (Fortsetzung). Deutsche Entomologische Zeitschrift, “Iris,” herausgegeben von Entomologischen Verein Iris zu Dresden, 45:1–27, 1 plate.

Zimsen, E.

1964. The Type Material of I. C. Fabricius. 656 pages. Copenhagen: Munksgaard.

Plates

PLATE 1.—Adults of Horama: 1, H. pretus male, Puerto Rico, NMNH; 2, H. grotei female, Hardware Gap, Greenhills, Jamaica, CM; 3, H. p. panthalon male (yellow morph), Rancho Grande, Aragua, Venezuela, NMNH; 4, H. p. panthalon female (orange hind wing morph), Mt. Eagle, St. Croix, Virgin Islands, NMNH; 5, H. p. panthalon [holotype of serena Schaus], Canal Zone, Panama, NMNH; 6, H. p. texana female, 4 mi SW Ciudad Victoria, Tamaulipas, Mexico, NMNH.

PLATE 2.—Adults of Horama: 7, H. p. viridifusa male (morph I, see text), San Julian, Chiquitos, Bolivia, BM (NH); 8, H. p. viridifusa male (morph II, see text), Prov. del Sara, Bolivia, CM; 9, H. tarsalis male, Port-au-Prince, Haiti, AMNH; 10, H. pennipes male holotype, Cuba; 11, H. diffissa male, Port-au-Prince, Haiti, AMNH; 12, H. diffissa female, Santiago, Cuba, NMNH.

PLATE 3.—Adults of Horama and Poliopastea: 13, H. plumipes female, Madden Dam, Canal Zone, Panama, MCZ; 14, H. oedippus female, Valladolid, Yucatán, Mexico, BM (NH); 15, H. oedippus male [color variant], Coatepec, Mexico, NMNH; 16, Horama zapata male holotype, San Blas, Cienaga de Zapata, Cuba, PAD; 17, Poliopastea clavipes male, Rancho Quemado, Rt. 85, Km 353, SLP, Mexico, NMNH; 18, Poliopastea clavipes male photographed under ultraviolet illumination.

____________

* Todd (1966), in the Proceedings of the United States National Museum, 120:4, discusses the priority of the Grote names over those of Herrich-Schäffer.

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