Proceedings ofthe United StatesNational MuseumSMITHSONIAN INSTITUTION . WASHINGTON, D.C.
Volume 119 1966 Number 3548NOTES ON ARADIDAE IN THE U.S. NATIONAL MUSEUM, IV(HEMIPTERA: HETEROPTERA) 'By Nicholas A. KormilevFor the privilege of studying the unidentified Aradidae in thecollections of the U.S. National Museum, Smithsonian Institution,I wish to express my sincere appreciation to Dr. J. F. Gates Clarke,former Chairman and presently Senior Scientist of the Departmentof Entomology, to Dr. Richard C. Froeschner, Associate Curator inCharge, Division of Hemiptera, and to the late Dr. Carl J. Drake,Honorary Research Associate. The deposition of types of new-species is stated with the descriptions.In the descriptions, 25 units equal 1 mm. The order of the figuresin the ratios follows the descriptive text leading to the ratios.Subfamily Aradinae Amyot and Serville, 1843Except for a few strong flying species of the luguhris group whichoccur in the Southern Hemisphere, the subfamily Aradinae is holarcticin distribution. The subfamily in North America was relatively
1 Previous parts of this same series are: I, Kormilev, 1958, Proc. U.S. Nat.Mus., vol. 109, no. 3413, pp. 209-222; II, Kormilev, 1960, Journ. New YorkEnt. Soc, vol. 68, pp. 36-47; III, Kormilev, 1964, Proc. U.S. Nat. Mus., vol.115, no. 3483, pp. 245-258.2 365 Lincoln Place, Brooklyn, New York 11238. 1
2 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 119well worked out in the first half of the century by various Americanentomologists, particularly by Van Duzee, Parshley, and Usinger.Parshley's (1921) key for the species of the genus Aradus Fabriciiis,though now more than forty years old, is still the basic aid for identi-fication of American species. Nevertheless, even today new speciesai'e being found. Three of them are described herewith.Genus Aradus FabriciusAradus Fabricius, 1803, Systema rhyngotorum, p. 116.Aradus saileri, new speciesFigure 1Male. ?Elongate ovate, slightly widening backward; body finelygranulate.Head shorter than width across eyes (22:26); distance betweeneyes shorter than length of the head (17:22). Anterior processmoderately long, slightly tapering anteriorly, tip rounded. Anten-niferous tubercles short, robust, acute, parallel exteriorly, reachingmiddle of antennal segment I. Eyes subpedunculate, kidney-shaped,almost touching foreborder of pronotum. Lateral tooth of anten-niferous tubercles absent. Preocular tubercles small, acute; post-ocular small, slightly blm-red. Depressions of vertex deep, curved,connected posteriorly. Antennae robust, less than twice as long aslength of head (40:22): antennal segment I cylindrical; II clavate;III cylindrical, as thick as tip of II; IV ovate, thinner than III;proportions of segments 6:15:11:8. Rostrum reaching foreborderof mesosternum.Pronotum less than half as long as width across humeri (20:44).Anterior border shghtly sinuate; anterolateral angles rounded; lateralborders very finely crenulate, strongly convex, rounded at humeri,very finely granulate, shghtly sinuate anteriorly. Inner carinaestrong, parallel, running from the foreborder to hindborder; middlecarinae much thinner and lower, restricted to posterior two-thirdsof disc, reaching hindborder; outer carinae blm-red. Disc densely,finely granulate.ScuteUum much longer than width at base (27:19); lateral bordersshghtly convex, rounded, moderately raised. Apex narrowly rounded.Prebasal elevation of disc small. Disc finely granulate.Hemelytra complete, distinctly wider than pronotum (50:44), apexof membrane reaching expanded border of genital capsule. Coriumlong, reaching hindborder of connexival segment V, its basolateralborder expanded and reflexed ; apical border convex exteriorly, sinuateinteriorly; veins raised, finely granulate.
NO. 3548 ARADIDAE?KORMILEV 3Abdomen longer than width across segment VI; connexiviim wide,finely granulate; postero-exterior angles II to V not protruding, VIslightly protruding, VII produced backward, rounded apically.Color.?^Black; posterior borders of connexiva, inner borders ofexpanded genital lobes, and tips of femora, white or whitish; remainderof femora and the tibiae dark brown.Measurements.?Total length 5.0 mm.; width of pronotum 1.76mm.; width of abdomen 2.24 mm.HoLOTYPE.?Male, Riverside Tanana R., Alaska, Lindroth collec-tor, June 29, 1958. Bears label: "Aradiis n.sp. nr duzeei det. R.I.Sailer" (USNM type 67580).It is a pleasure to dedicate this species to Dr. Reece I. Sailer whofirst identified it as a new species.Aradus saileri, new species, is related to A. montanus Bergroth butdiffers from it by the following characteristics: head is much shorterthan its width across eyes; antenniferous tubercles without lateraltooth; connexivum bicolored; and size much smaller.Aradus ovatus, new speciesFigures 2, 3Female.?^Brachypterous; ovate, regularly tapering forward, less sobackward ; densely and finely granulate.Head as long as width across eyes (25:25.5); distance between eyeslonger than length of antennal segment II (17:12). Anterior processlong, parallel-sided, reaching basal fourth of antennal segment II.Antenniferous tubercles conical, acute, directed a Httle downward;outer borders parallel, without tooth. Preocular tubercles ratherobsolete, postocular absent; depressions of vertex shallow, wide, notconnected posteriorly. Eyes globose, very prominent, but notstalked. Antennae short, less than one and a half times as long ashead, (32:25), slightly narrower than fore-femora (4:5); antennal seg-ment I ovate, II clavate, III tapering toward base, IV obovate;proportions of segments 5:12:8:7. Rostrum short, reaching frontcoxae.Pronotum one-third as long as width across humeri (14:41). Ante-rior border deeply sinuate, finely crenulate; anterior angles rounded;lateral borders finely crenulate, sUghtly reflexed, straight and con-vergent anteriorly, arcuate posteriorly; hindborder deeply sinuate.Disc rather flat, densely granulate; inner carinae thin, finely granulate,slightly convergent backward; middle and outer carinae obsolete.Scutellum triangular, sUghtly longer than width at base (20:18);lateral borders very shghtly reflexed at apical half; apex narrowlyrounded; disc uneven, densely granulate, shghtly depressed at two-fifths its length and before tip.
4 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 119Hemelytra abbreviated, mder than pronotum; membrane reducedto a narrow rim at tip of corium interiorly; clavus not discernible;exocorium strongly developed, outer border arcuate, finely crenulate;posterolateral borders of main corium simple, not crenulate.Abdomen ovate, slightly longer than width across segment V(70:67). Lateral borders finely crenulate, widely rounded; postero-exterior angles II to V not protruding, VI slightly protruding, VIIalmost forming a right angle. Connexivum wide, densely granulate,its limit with tergum rather blurred. Tergiim flat, sUghtly convexmedially; limit between terga VII and VIII clearly defined medially,almost indistinguishable laterally. Lobes of VIII large, pincer-shaped, sm-rounding small tergum IX, but not contiguous at tips.Tergum IX reaches middle of lobes.Color.?Testaceous; occiput, and postero-exterior angles of con-nexiva II to VII, pale reddish brown, almost whitish; outer borders ofconnexival segments in front of postero-exterior angles brown; headand pronotum ferruginous.Measurements.?Total length 5.2 nmi.; width of pronotum 1.64mm.; width of abdomen 2.68 mm.HoLOTYPE.?Female, Onaga, Kans., Crevecoem- collector (USNMtype 67581).Aradus ovatus, new species, is related to A. montanus Bergroth butmay be separated by the following characteristics: antennal segmentIII two-thirds as long as II ; middle and outer carinae of the pronotumobsolete; pronotum widest far behind middle; size much smaller;and by color. Aradus barberi, new speciesFigure 4Male.?Elongate ovate, macropterous.Head shghtly longer than width across eyes (25:23); distancebetween the eyes less than length of antennal segment II (15:22.5).Anterior process long, slightly enlarged medially, produced beyondtip of antennal segment I. Antenniferous tubercles dentiform,acute, divergent, lateral tooth distinct. Eyes very prominent,kidney shaped. Preocular tubercles small, acute; postocular tuber-cles prominent, blunt. Depressions of vertex deep, slightly convergentbackward, connected posteriorly. Antennae long, slender, less thantwice as long as head (47:25). Proportions of antennal segments5.5:22.5:9:10. Rostrum reaching to foreborder of mesosternum.Pronotum less than half as long as width across humeri (19:43).Anterior border straight, anterolateral angles produced forward,subangular. Lateral borders sinuate and reflexed anteriorly, strongly
NO. 3548 ARADIDAE?KORMILEV 5convex, rounded posteriorly. Hindborder sinuate. Interlobal de-pression shallow, distinct; inner carinae thin, parallel between them-selves; middle carinae convergent on forelobe, parallel on the hindlobe;outer carinae short, robust, parallel.Scutellum triangular, longer than basal width (23:18). Lateralborders slightly arcuate, rimmed, reflexed; tip narrowly rounded;disc slightly raised medially, densely granulate anteriorly and aroundelevation.Hemelytra reaching lobes of genital capsule; exterior border ofcorium slightly arcuate, almost straight; hemelytra as wide as pro-notum; clavus longer than scutellum; corium reaching hindborder ofconnexival segment IV; membrane large.Abdomen elongate ovate, longer than width across segment IV(63:46); lateral borders evenly, widely rounded; postero-exteriorangles not protruding; VII forms an acute angle. Connexivum nar-row anteriorly, widening posteriorly; lobes of genital capsule large,contiguous at their tips.Color.?Greyish browTi to sepia; corium and membrane variegatedwith whitish spots. Each lobe of genital capside with a large, whitishspot. Antennae sepia, tips of segments II and III whitish.Measurements.?Total length 5.32 mm.; width of pronotum 1.72mm.; width of abdomen 1.84 mm.HoLOTYPE.?Male, Evergreen, Colo., collector not known. Col-lected on Pinus ponderosa. Bears a label: "Aradus n.sp. nearmarginatus Uhl. det H. G. Barber" (USNM type 67582).Paratypes.?Five males, deposited in the same collection and inthe collection of the author.This species is dedicated to the memory of the late Mr. H. G.Barber, an eminent American hemipterologist, who first identified itas a new species.Aradus barberi, new species, runs in Parshley's key to A. marginatusUhler, as Barber has indicated. It differs by having antennal seg-ment II one and one-half times as long as the distance between eyes,while in A. marginatus these two measurements are equal.Subfamily Calisiinae Stal, 1873Genus Calisiopsis ChampionCalisiopsis Champion, 1898, in Godman and Salvin, Biologia Central!-Americana,Rhynchota: Heteroptera, vol. 2, p. 67.The genus Calisiopsis Champion has had only three species: twofrom Central America, and one from southeast Brazil. Among speci-mens examined was one from Finca Florida, Valle Tablones, Colombia,1300 m. that belongs to Calisiopsis. Judging by the shape of the
6 PROCEEDINGS OF THE NATIONAL MUSEUM vol. u9head and position of the eyes, it belongs to a new species; but becauseboth of the taxonomically important antennae are missing, I prefernot to describe it.Subfamily Aneurinae Douglas and Scott, 1865Aneurinae contains only two genera: Aneurus Curtis, 1825, with aworldwide distribution, and Aneuraptera Usinger and Matsuda, 1959,with a single micropterous species from New Zealand. From theWestern Hemisphere twenty species have been recorded. Two moreare described herewith: one from Texas, the other from Guadeloupe.Genus Aneurus CurtisAneiirvs Curtis, 1825, British Ent., vol. 2, pi. 86.Aneurus pygmaeus, new speciesFigures 5-7Male.?Elongate ovate, slightly widening backAvard. Head flat,almost as long as width across eyes (cf, 11:12; 9,12:13). Anteriorprocess conical, rounded anteriorly, slightly produced over tip ofantennal segment I. Antenniferous tubercles small, acute. Eyesmoderately convex. Postocular tubercles blunt, slightly producedover outer border of eyes. Vertex with two (1 + 1) small, ovatecallosities; surface finely, transversely rugose behind them. Antennaeslender; first two segments obovate, last two cylindrical; proportionsof segments cf, 4:3:4:8; 9, 4:3.5:4.5:9.Pronotum trapezoidal, shorter than width across humeri (cf,10:22.5; 9, 10:25). Collar very fine, slightly sinuate in front; antero-lateral angles rounded, slightly produced forward beyond collar;lateral borders of the forelobe straight, convergent; lateral borders ofthe hindlobe convex, rounded; both very finely crenulate; hindborderwidely sinuate medially, convex at hind angles. Foredisc with two(1 + 1) round, callosities; hinddisc finely striated.Scutellum semicircular, shorter than width at the base (cf , 9.5:14.5;9, 10:15); base slightly raised; disc concentrically striated.Hemelytra long, reaching foreborder of tergum VH (cf), or almostto hindborder of tergum VII (9). Corium reaching two-fifths oflength of scutellum; membrane large, finely WTinkled. Hindwingsreduced, reaching only to hindborder of tergum III.Abdomen ovate, much longer than width across segment IV (cT,43:32.5; 9, 48:33). Exterior borders slightly convex, moresoposteriorly; postero-exterior angles not protruding. Connexiva veryfinely granulate at exterior borders. Each connexival segment fromIII to VI with two ovate, calloused spots; connexival segment VII
NO. 3548 ARADIDAE?KORMILEV 7with a single spot. Exterior borders of abdomen finely crenulate.Hypopygium small, ovate, slightly depressed, finely granulate;paratergites relatively large, flat, reaching tip of hypopygium. Infemales, tergum VII deeply sinuate posteriorly for reception of tergumVIII; segment IX very short and wide (1:5), straight posteriorly;paratergites smaU, rounded posteriorly, reaching to tip of segmentIX. Spiracles II lateral; III to V ventral, not visible from above; VIand VII lateral, visible from above; VIII terminal.Color.?Dark ferruginous, partially blackish; tergum and venteryellow brown; membrane white, transparent, brownish at the base.Measurements.?Total length: cf, 3.0 mm.; 9, 3.28 mm.; widthof pronotum; cf, 0.9 mm.; 9, 1.0 mm.; width of abdomen: cf, 1.3mm.; 9, 1.32 mm.HoLOTYPE.?Male, Aransas Co., Tex., Mar. 31, 1954, D. J. andJ. N. KnuU collectors, ex J. L. Lutz collection, USNM collection(USNM type 67583).Allotype.?Female, collected with holotype; in the same collection.Paratype.?One female, Mississippi, Jan. 9, 1946; deposited inthe collection of author.Aneurus pygmaeus, new species, is related to A. minutus Bergroth,from which it differs by the following: scutellum regularly semi-circular, in A. minutus more narrowed at the tip, almost subtriangular;paratergites of male larger, and widened toward the tip, in A. minutusnarrower, almost subcylindrical; whitish semitransparent membrane,in A. minutus bro\\"n and not transparent; dark ferruginous body,in A. minutus yellow brown (I hold the former color as distinctive)
;
in the female, abdomen narrow and long, in A. minutus more ovate;paratergites are also different.Aneurus nasutus, new speciesFigures 8, 9Male.?Elongate ovate, shiny; lateral borders of pronotum andabdomen with semiobliterated granulation.Head as long as width across eyes (13 : 13.5) ; anterior process stout,tapermg forward, rounded apically, reaching tip of antennal segmentI. Antenniferous tubercles small, blunt, convex exteriorly. Eyessemiglobose, moderately protruding. Postocular tubercles small,blunt, not reaching outer border of the eyes. Mesad of the lattertwo (1 + 1) large, ovate, glabrous spots. Vertex roughly, transverselyrugose. Antennae slender, less than twice as long as head (24:13);proportions of antennal segments 5:4:5:10.Pronotum half as long as width across humeri (14:30). Collarthin, sinuate anteriorly. Anterolateral angles rounded, neither pro-duced forward nor sideways; lateral borders of forelobe straight,
8 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 119strongly convergent; lateral borders of hindlobe parallel, rounded andconvergent anteriorly. Hindborder sinuate medially. Foredisc withfour (2+2) large, flat callosities. Hind-disc finely, transverselyrugose; with two (1+ 1) large, transverse, elongate, glabrous spotsmesad of humeri.Scutellum short, wide at base (12:21), widely rounded apically;disc concentrically rugose.Hemelytra almost reaching hindborder of tergum VII. Coriumvery short, reaching middle of scutellum. Membrane large, finelywrinkled.Abdomen ovate, longer than width across segment IV (52:39).Outer borders of connexiva with semiobliterated granidation; hind-borders of connexival segments glabrous, shiny. Spiracles II lateraland visible from above; III to V sublateral, but not visible from above;VI and VII lateral and visible; VIII tenninal. Paratergites small,strongly divergent, not reaching tip of hypopygium. Latter small,lateral borders convergent; tip rounded; disc moderately convex.Femora moderately inflated, fusiform.Color. ^?Dark brown; hindhalf of head, middle of pronotum, andbase of scutelliun, yellow broA\Ti; membrane black.Measurements.?Total length 3.84 mm.; width of pronotum 1.2mm.; width of adbomen 1.56 mm.HoLOTYPE.?Male, Guadeloupe; deposited in Drake collection(USNM type 67584).Aneurus nasutus, new species, is not particularly related to any ofCentral American species; it appears to be most like A. subdipterousBurmeister from southeastern Brazil, but is smaller. Antennae aresimilar to those of A. tenuis Champion but the shape of the head isquite different: antenniferous and postocular tubercles small, andblunt; scutellum of different shape; lateral borders of the pronotumand abdomen are smoother, not finely crenulate; hypopygium islarger; and color is different.Subfamily Carventinae Usinger, 1950Usinger (1950, p. 176) divided the Mezirinae into two tribes,Mezirini and Carventini. Later, Usinger and Matsuda (1959a, p. 56)elevated the latter to a subfamilial rank. All members of the Car-ventinae are tropical or subtropical, none occur in the holarcticregion. Many of them are apterous or micropterous. The ivory-likeincrustation on the body of some species, as in the genus Proxius,may accumulate on tufts of hair and produce projections which givethe insect a bizarre appearance.
NO. 3548 ARADIDAE?KORMILEV 9Genus Proxius StalProxius Stal, 1873, Kongl. Svenska Vet.-Akad. Handl., vol. 11, p. 141.Proxius has had six species which Usinger and Matsuda (1959,pp. 113-114) placed into three subgenera: two of these, ProxiusStal sensu stricto, with a single species and Neoproxius Usinger andMatsuda, with four species, are American; the third one, NesoproxiusUsinger and Matsuda, with a single species, is Sumatran. One newspecies, belonging to the subgenus Neoproxius , is described herewith.Proxius (Neoproxius) peruvianus, new speciesFigures 10, 11Female.?Elongate ovate; partially incrustated with an ivory-liked incrustation.Head longer than Avidth across eyes (20:16), as long as width acrosspostocular projections (20:20). Anterior process long, parallel-sided, deeply cleft anteriorly; genae much longer than clypeus,cylindrical and truncate anteriorly, surpassing the tip of antennalsegment I by one-fifth of their length. Antenniferous tuberclesdentiform, slender, parallel-sided, reaching a little beyond middleof antennal segment I. Eyes small, semiglobose, moderately pro-truding. Postocular parts of head produced mto large, partiallypunctured, triangular processes reaching far beyond outer borderof eyes. Vertex with a punctured elliptical, flattened elevationrunning from clypeus to hindborder of head; head produced back-ward, forming a long "neck." Antennae, clypeus, and two (1 + 1)ovate, glabrous spots laterad of the elevated portion of vertex, rostralatrium, and rostrum, not mcrustated; all other parts of head coveredwith thick, ivory-like, incrustations. Antennae long and slender,one and a half times as long as length of the head (32:20). Pro-portions of antennal segments 6:5:13.5:7.5. Rostrum short, reach-ing hindborder of narrow, deep, and short rostral groove; latterclosed posteriorly. Rostral atrium closed.Pronotum subrectangular, shorter than width across humeri (20:35).Forelobe almost as wide as hindlobe (32:35). CoUar small, convex,foreborder straight. Anterior angles produced forward far beyondcollar as two (1+ 1) lobes, these rounded interiorly and sinuateexteriorly. Anterolateral angles subrectangular; lateral borders offorelobe slightly sinuate, provided with a row of short, erect bristlesprojecting through incrustation. Interlobal notch deep and narrow.Lateral borders of hindlobe short, convex, deeply notched medially.Hindborder sUghtly convex medially, posterior angles angularly pro-
10 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 119duced backward. Foredisc flat medially, with a small, relatively high,median ridge on posterior half of disc; strongly inflated laterally in ashape of an S with eight (4+4) dots on inner sides, deeply excavatedlaterad of these inflations. Collar, and two (1 + 1) round dots lateradof the median ridge, without incrustation; other parts of forelobeheavily incrusted. Hind-disc with two (1 + 1), L-shaped, high, trans-verse carinae medially, turned with their bases to each other, andwith four (2+2) short, obhque ridges laterally. Latter produced overactual lateral border forming lateral teeth of the hindlobe. Hind-discwithout incrustation, except along carinae.Scutellum subtriangular, shorter than width at base (11:19),rounded posteriorly. Disc flat, without incrustation except on thetwo (1+ 1) lateral, high, hatchet-shaped ridges with their bladessideways.Hemelytra reaching apical third of tergum VII. Corium veryshort, outer border carinate, incrusted ; membrane transparent, finelycorrugate.Abdomen ovate, longer than width across segment IV (59:45).Lateral borders slightly, evenly convex. Connexival segments II andIII fused, provided with two longitudinal ridges converging anteriorly.Other connexival segments rather flat, heavily incrusted; their outerborders slightly convex from II to IV, angularly produced on hind-halves from V to VII. Tergum incrusted laterally, posteriorly ontergum VII; outer margin of incrustation obHquely raised. Parater-gites small, triangular, incrusted, reaching tip of segment IX. Lattersubtruncate posteriorly. Spiracles very small, from II to IV ventralbut progressively nearing margin; lateral and visible from abovefrom V to VIII. Venter incrusted only laterally. Sternum incrustedalong borders. Propleura incrusted.Legs relatively long, slender; femora fusiform; tibiae cyHndrical,slender. Tarsi with aroha.Color.?^Under incrustation and on free parts, yellow brown tobrown; incrustation ivory.Measurements.?Total length 4.44 mm.; width of pronotum 1.4mm.; width of abdomen 2.36 mm.HoLOTYPE.?Female, Satipo, Peru, P. Paprzycki collector, Apr. 26,1941 (USNM type 67585).Proxius peruvianus, new species, is related to P. palliatus Championand may be separated from the latter by the following: genae producedbeyond the tip of antennal segment I; absence of excavation on postoc-ular lobes; median ridge of the pronotum reduced to a very short, thincarina on the hindhalf of forelobe; different shape of carinae on thehindlobe of pronotum and scutellum.
NO. 3548 ARADIDAE?KORMILEV 11Genus Kolpodaptera Usinger and MatsudaKolpodaptera Usinger and Matsuda, 1959, Classification of the Aradidae, p. 144.Kolpodaptera minuta, new speciesMale.?Apterous; subovate; from metanotum to abdominal seg-ment VI lateral borders parallel. Entire body covered with thicklayer of greyish incrustation.Head shorter than width across eyes (11:12.5). Anterior processshort, robust, sides parallel; genae slightly produced beyond the tip ofclypeus, not contiguous, forming a shallow notch. Antennal segmentI produced by two-thirds its length over tip of anterior process.Antenniferous tubercles robust, subacute apically, outer borders sub-parallel. Eyes moderately protruding. Postocular borders conver-gent backward. Vertex with a thin, triple, longitudinal carina,laterally with two (1 + 1) oblique rugae. Antennae strong, almosttwice as long as head (19.5:11); proportions of the antennal segments7:3:4.5:5. Eostrum reaching hindborder of rostral groove; latterwide, shallow.Pronotum much shorter than width across humeri (8:21). Collarslender. Anterolateral angles together with lateral borders forma regularly rounded arc. Disc with a median carina occupyingposterior three-fifths of disc and running backw^ard across meso- andmetanotum and tergum I, progressively widening, becoming a doublecarina on metanotum and tergum I. Pronotum irregularly rugoselaterad of median carma. Mesonotum wider than pronotum (24 :21),Metanotum wider than mesonotum (25:24). Mesonotum laterad ofmedian carina with four (2+2) larger, and two (1 + 1) smaller, flat-tened elevations separated from each other by fine sulci. Mesonotumrugose along lateral borders. Median carina of mesonotum fusedposteriorly with median portion of metanotiun; latter in turn fusedposteriorly with tergum I; all together forming a longitudinally rugosetriangular plate. Laterad of triangular plate metanotum has two(1 + 1) rugose elevations.Abdomen subrectangular, slightly longer than width across seg-ment II (27.5:26). Tergum I fused with metanotimi anteriorly and\\dth tergum II posteriorly; latter placed at a slightly lower level.Central dorsal plate consist of terga III to VI, limited by fine sulci.Median portion of central dorsal plate elevated, forming a medianridge, laterad of it with pattern of rugae and round caUous spots.Tergum VII raised posteromedially for reception of hypopygium.Connexivum broad, segments II and III fused, others separated fromeach other by fine sulci; disc of each segment bearing round calloused
12 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 119spots with rugae around them; postero-exterior angles II to V notprotruding; VI makes a step with VII; the latter produced backwardas a triangular process, reaching to tip of hypopygium. Paratergitescylindrical, directed obliquely up and backward. Hypopygium dorso-caudal, flattened on disc, with an ovate median elevation on lowerhalf. Spiracles II to VII lateral, visible from above; those of VIIIterminal.Color.?Yellow bro-wn, partially darker.Measurements.?Total length 2.36 mm.; width of pronotum0.84 mm.; width of abdomen 1.04 mm.HoLOTYPE.?Male, Livingston, Guatemala; deposited in Drakecollection (USNM type 67586).Kolpodaptera minuta, new species, is related to K. panamensisUsinger and Matsuda from which it may be separated by head shorterthan width across the eyes; eyes less prominent; antenniferoustubercles relatively shorter; postero-exterior angle of connexivalsegment VII also relatively shorter; proportions of antennal segment14 : 6 : 9 : 10, whereas in K. panamensis they are 15:9:10:14.Kolpodaptera rugosa, new speciesFemale.?Apterous; ovate; thickly covered with greyish incrusta-tion and accumulated dirt; under incrustation glabrous and shiny.Head shorter than width across eyes (14:15.5). Anterior processshort and robust, cleft anteriorly, genae longer than clypeus andpointed, reaching basal one-third of antennal segment I. Anten-niferous tubercles short, robust, broad at base, subacute apically.Eyes moderately prominent, with convex facets. Postocular bordersstrongly convergent. Vertex with a short longitudinal ridge flankedby two (1 + 1) thin carinae, behind them with two (1+ 1) smaU, butprominent tubercles. Antennae strong, more than twice as long ashead (29.5:14); proportions of antennal segments 10:5:7:7.5. Ros-trum short, reaching hindborder of shallow, wide rostral groove.Pronotum much shorter than width across humeri (8:28); mesono-tum wider than pronotum (34 :28) ; metanotmn wider than mesonotum(39:34). Anterolateral angles of the pronotum rounded; lateralborders divergent backward. Collar thin, smooth. Median carinastarts at middle of disc and fuses poteriorly with triangular plateformed by median portions of meso-, metanotum, and tergiun I.Laterally pro-, meso-, and metanotum separated from each other bydeep, transverse furrows. Median, triangular plate on meso-, andmetanotum with a double median carina, roughly, longitudinallyrugose laterally. Laterad of the median triangular plate, pro-, meso-,and metanotum roughly, irregularly rugose. Along lateral borderspro-, meso-, and metanotum roughly granulate.
NO. 3B4S ARADIDAE?KORMILEV 13Abdomen as long as width across segment IV (42 :42.5). Tergum Icompletely fused wdth metanotum (median, triangular plate), andwith tergum II ; latter can be recognized only because it is at a slightlylower level. Central dorsal plate of the abdomen consists of tergaIII to VI, with a slightly elevated median line narrowed on tergumIII, much wider on terga IV and V, and with a double longitudmalcarina on tergum VI ; laterad of the median elevation disc has a patternof irregular rugae and round callous spots. Tergum VII convexmedially, sloping laterally; VIII very short and wide. Connexivumwide; discs of connexival segments with a pattern of rough rugae andgranules; exterior borders of each segment slightly convex, entirelateral border weakly festooned; postero-exterior angles from II toIV not protruding, V slightly protruding, VI forming an obtuse angle,and VII forming a right angle. Paratergites rounded, producedbackward beyond tip of very short segment IX. Spiracles II toVIII lateral, visible from above.Color.?Brown; lateral borders and central dorsal plate of theabdomen partially mottled with black.Measurements.?Total length 3.24 mm.; width of pronotum 1.12mm.; width of abdomen 1.56 mm.HoLOTYPE.?Female, Cayamas, Cuba; deposited in the DrakecoUection (USNM type 67587).Kolpodaptera rugosa, new species, is related to K. prominens Usingerand Matsuda and may be separated from it mainly by head shorterthan width across the eyes; antennae relatively longer, more thantwice as long as the head (less than twice in K. prominens) ; anddifferent proportions of the antennal segments which are 20:10:14:15,whereas in K. prominens they are 25:11:16:17.Subfamily Merizinae Oshanin, 1908Mezirinae is the largest subfamily of the Aradidae. Previously, itwas considered as a family under the name of Dysodiidae Renter, but,as Usinger and Matsuda pointed out (1959, p. 54), that would distortthe actual relationship between subfamilies so far included in Dyso-diidae; therefore, they accepted Aradidae as a single family, consistingof eight subfamilies, including Mezirinae, and leaving only Termita-phididae as a second family in the superfamily Aradoidea.Mezirinae has an almost worldwide distribution. It is absent fromthe frigid areas and develops the highest number of genera and speciesin the tropical and subtropical zones. Strange as it may seem, fromthe entire European and Siberian part of the Palaearctic region thereis recorded only a single species of Mezirinae, Mezira tremulae(Germar) , 1822. The Manchurian subregion of the Palaearctic regioncontains several genera and numerous species.219-946?66 3
14 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 119Genus Miorrhynchus ChampionMiorrhynchus Champion, 1898, in Godtnan and Salvia, Biologia Centrali-Ameri-cana, Rhynchota: Heteroptera, vol. 2, p. 75.The genus Miorrhynchus Champion has contained ten species whichmay be separated into two groups: those with spiracles from VI toVIII lateral and visible from above; and those with only spiraclesVII to VIII lateral and visible from above. Two new species belong-ing to the first group are described herewith.Miorrhynchus angulatus, new speciesFigures 16, 17Male.?Elongate, widening backward, subtruncate posteriorly,partially covered with relatively long, incrusted, curled hairs.Head longer than width across eyes (25 :22). Anterior process longand moderately stout, covered with incrusted hairs which make itlook stouter; reaching basal fourth of antennal segment I. Anten-niferous tubercles parallel, directed forward. Eyes moderately large,semiglobose, protruding. Postocular borders straight; postoculartubercles placed far from eyes, dentiform, directed sideways. Vertexwith two (1 + 1) rows of parallel, setigerous tubercles, running frombase of clypeus to hindborder of head, two (1 + 1) pyriform callositieslaterad of each row. Antennae very^ long, more than three times aslong as head (81 :25) ; first two segments covered with incrusted hairs,those on first segment longest; apical two segments except for a brushof erect bristles on tip of IV, naked. Proportions of the antennalsegments: 29 : 12 :30 : 10. Rostral groove long, deep, closed posteriorly;rostrum reaching hindborder of latter.Pronotum much shorter than width across the humeri (32:50);forelobe much narrower than hindlobe (36:50); interlobal depressiondeep. Collar wide, with strongly sinuate foreborder. Antero-lateral angles rounded, with a fringe of long, incrusted hairs; lateralborders shghtly convex on the forelobe, more convex on the hindlobe
;
hindborder almost straight. Foredisc with two (1 + 1) round callo-sities; laterad of them with two (1 + 1) ridges covered with incrustedhairs; hinddisc rather flat, covered with remote granulations andshort, incrusted hairs.ScuteUum shorter than width at base (20:28); carinate at allborders; lateral borders straight; tip pointed; disc rugose, with a low,median ridge, covered with long, curled, incrusted hairs.Hemelytra reaching middle of tergum VII. Basolateral bordersof corium reflexed; apical border convex exteriorly, sinuate interiorly;apical angle rounded, reaching hindborder of connexivum II. Mem-brane large, veins anastomosed.
NO. 3548 ARADIDAE?KORMILEV 15Abdomen longer than width across segment VI (90:72.5); lateralborders feebly convex from II to V; angularly produced on VI andVII. Exterior borders of connexival segments II to V slightly con-vex, making lateral borders look festooned. Connexival segment VItrapezoidal, with postero-exterior angle rounded at tip; VII angu-larly produced backward as far as the tip of hypopygium. Parater-gites flat, fusiform, reaching to tip of hypopygium. Latter subcordate,shorter than maximal width (15:19), divided by a transversefurrow in upper and lower lobes. Upper lobe subtriangular, wath arelatively narroAV median ridge; lower lobe semiglobose; both lobescovered with incrusted, curled hairs. Spiracles from II to V ventral,placed far from borders; VI to VIII lateral and visible from above.Color.?Ferruginous; base of antennal segment I, antennalsegment III, with exception of tip, and apical half of IV, yellowbrown. Round calloused spots on connexival segments III to VIIyellow.Measurements.?Total length 6.8 mm.; width of pronotum 2.0mm.; width of abdomen 2.9 mm.HoLOTYPE.?Male, Callanga, Peru, 1300 m., F. Woytkowski col-lector, Feb. 13, 1953 (USNM type 67588).Miorrhynchus angulatus, new species, is related to M. longipesChampion and may be separated from the latter by the angularlyproduced connexivum VI, which is rounded in M. longipes.Miorrhynchus undulatus, new speciesFigures 18, 19Male.?Elongate ovate; partially covered \^'ith curled, incrustedhairs.Head longer than width across eyes (25:21). Anterior processmoderately stout, covered laterally with incrusted hairs; reachingbasal fourth of antennal segment I. Antenniferous tubercles short,blunt, slightly divergent. Eyes semiglobose, protruding, but lessthan in preceding species. Postocular borders convex; postoculartubercles spiniform, placed fai- behind eyes, dii-ected sideways and ahttle backward. Vertex Anth V-shaped row of setigerous tubercles,and laterad of them Avith two (1 + 1) ovate callous spots. Antennaelong, more than three times as long as head (80:25); proportions ofantennal segments 28:12.5:28:11.5. Rostrum reaching hindborderof rostral groove, latter closed posteriorly.Pronotum shorter than width across humeri (35:53). Forelobemuch narrower than hindlobe (36:53). Collar wide, slightly sinuateanteriorly. Anterolateral angles rounded; lateral borders convex onthe forelobe, strongly convex on the hindlobe. Hindborder slightly
16 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 119convex in the middle. Foredisc with two (1 + 1) ovate callousedspots, laterad of them mth two (1+1) longitudinal ridges, the lattercovered with incrusted, curled hairs. Hind-disc partially rugosewith half obliterated setigerous granules. Humeri raised.Scutellum shorter than width at base (20:26). All borderscarinate; lateral borders straight, tip pointed. Disc transverselyrugose; median carina tapering backward, covered with dense,curled, incrustate hairs.Hemelytra reaching apical third of tergum VII. Basolateralborders of corium reflected; apical border straight exteriorly, sinuateinteriorly. Apical angle of corium pointed, reaching slightly overthe hindborder of connexival segment II. Membrane large, withanastomosed veins, thickly covered mth whitish incrustation.Abdomen longer than mdth across segment IV (90:66); lateralborders moderately convex. Exterior borders of connexival segmentsII to V slightly convex; postero-exterior angles protruding, androunded on connexival segments II to IV; subangular but not pro-truding on VI and VII; VI forms a slightly obtuse angle, with roundedtip; VII forms a slightly acute angle, directed backward and slightlysideways, tip rounded reaching to middle of paratergites. Parater-gites small, clavate, reaching to middle of hypopygium; latter large,subcordate, with a moderately wide median ridge. Spiracles ventralon II to V; lateral and visible from above on VI to VIII.Color.?Ferruginous to dark ferruginous; tibiae with a wideyellow-brown subbasal ring. Connexival segments III to VI eachwith two, connexival segment VII mth one, round, yellow-brown,calloused spots.Measurements.?Total length 6.84 mm.; width of pronotum 2.14mm.; width of abdomen 2.64 mm.HoLOTYPE.?Male, Callanga, Peru, 1300 m., F. Woytkowski col-lector, Feb. 13, 1953 (USNM type 67589).Miorrhynchus undulatus, new species, is closely related to M.championi Kormilev but differs from it by the undulate lateral bordersof abdomen which are not undulate in M. championi.Genus Placogenis Usinger and MatsudaPlacogenis Usinger and Matsuda, 1959, Classification of the Aradidae, p. 352.Diphyllonotus Kormilev, 1959, Proc. Ent. Soc. Washington, vol. 61, p. 61.In a manuscript submitted for publication in 1955, the authororiginally proposed the name Diphyllonotus with the single includedspecies D. explanatus. Unfortunately, the manuscript was lost bythe printer. Thus the second species of the genus, D. brachypterus,was published in 1956 before the genus was validated. It was not
NO. 3548 ARADIDAE?KORMILEV 17until 1958 that the author learned the first manuscript was definitelylost; his redescription was prmted in a different magazine in March1959. Meanwhile, in January 1959, the genus was described byUsinger and Matsuda under the name of Placogenis; because the lat-ter has priority, Diphyllonotus went into its synonymy.The species of Placogenis are generally macropterous, but P.brachyptera (Kormilev) was recorded as both macropterous andbrachypterous. The species may be best separated by the relativelengths of antennal segments.Key to Species of Placogenis1. Antennal segment I long, produced beyond apex of genae by at least two-fifthsof its length; head much longer than width across the eyes 2Antennal segment I shorter, produced beyond apex of genae by at most one-fourth of its length; head as long as width across the eyes 32. Antennal segment I longer than IV (11:9.2), and much shorter than III(11:14) cockerelli Usinger and Matsuda, 1959Antennal segment I as long as IV (11:11), and shorter than III (11:13).explanata (Kormilev), 19593. Antennal segment I as long as (10:10, brachypterous form), or slightly longerthan IV (11:10, macropterous form), and shorter than III (10:13).brachyptera (Kormilev), 1956Antennal segment I shorter than IV (10:11), and much shorter than III(10:15) clarkei, new speciesPlacogenis clarkei, new speciesFigures 12, 13Female.?Ovate; macropterous.Head as long as width across eyes (21.5:22). Anterior processlong, parallel-sided, anteriorly cleft; genae much longer than clypeus,reaching apical fourth of antennal segment I. Antenniferous tuberclesacute, parallel-sided reaching basal fourth of antennal segment I.Eyes small, semiglobose, protruding. Postocular tubercles small,acute, reaching outer border of eyes; postocular borders oblique,converging backward. Vertex with V-shaped rows of small tubercles.Antennae long, strong, twice as long as head (44:21.5); proportionsof antennal segments 10:8:15:11. Rostrum short, reaching hind-border of rostral groove, latter open posteriorly.Pronotum trapezoidal, haK as long as width across humeri (22:44).Collar thin, well separated from the disc. Anterolateral anglesrounded, expanded, slightly reflexed; produced forward far beyondthe collar; lateral borders parallel at hindlobe, convergent anteriorly.Lateral notch almost imperceptible. Hindborder feebly and widelysinuate. Foredisc with foiu" (2+2) calloused spots, surrounded bya row of granules. Hind-disc roughly granulate.
18 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 119Scutellum shorter than width at base (15:22), Lateral borderscarinate, almost straight; tip rounded. Disc inflated, transverselyrugose, provided with a stout median carina, tapering backward.Hemelytra complete, reaching apical fourth of tergum VII.Corium short, not reaching hindborder of connexival segment II;basolateral border straight and reflexed, then flat and convex;apical border evenly sinuate; apical angle rounded.Abdomen longer than width across segment IV (72:63). Lateralborders evenly convex; postero-exterior angles not protruding. Suturebetween connexival segments II and III not discernible. TergumVII with a transverse carina along the hindborder, and a transversesulcus in front of it. Paratergites large, triangular, reaching middleof segment IX; latter notched posteriorly, Spriacles II to V ventral,placed far from border; VI to VIII lateral and visible from above.Female with second valvula longer than second valvifer.Color.?Ochraceous; lateral borders and apex of scutellum, antero-exterior angles of connexiva II to VII, spots on terga near joints ofconnexival segments III and IV, IV and V, V and VI, a spot in middleof hindborder of tergum VII, and the base of tergum VIII, fuscousto piceous.Measurements.?Total length 5.28mm.; width of pronotum 1.76mm.; width of abdomen 2.52 mm.HoLOTYPE.?^Female, Ciudad Universitaria, Tucuman, Argentina,J.F.G. Clarke collector, Feb. 19, 1959 (USNM type 67590).It is a pleasure to dedicate this species to the collector, Dr. J. F.Gates Clarke, Senior Scientist in the Department of Entomology inthe U.S. National Museum, Washington, D.C.Placogenis clarkei, new species, is related to P. brachyptera (Kormi-lev) from which it may be separated at once by different proportionsof antennal segments, particularly by the relatively longer segmentIII. Genus Notapictinus Usinger and MatsudaNotapidinus Usinger and Matsuda, 1959, Classification of tlie Aradidae, p. 361.The genus Notapictinus was established by Usinger and Matsudafor reception of the American species lacking the stridulatory appara-tus and previously referred to the genus Pictinus Stal, 1873.Usinger and Matsuda originally referred six species to Aotapictinusbut the genus is much larger. In my key for separation of the speciesof the genus Notapictinus (1964) are included 25 species, three moreare described herewith, and we may expect that further species willbe described before long.
NO. 3548 ARADIDAE?KORMILEV 19Notapictlnus uruguayensis, new speciesFigures 14, 15Female.?Elongate ovate, slightly widening backward; macrop-terous.Head shorter than width across eyes (16:17.5), Anterior processmoderately stout, reaching almost to apex of antennal segment I,sides slightly convex, tip deeply cleft; genae much longer than clypeus,with blunt tips. Antenniferous tubercles short, dentiform, divergent.Eyes large, protruding, their longitudinal diameter longer than anten-niferous tubercles (5:4). Postocular tubercles slender, dentiform,reaching as far as, or a little beyond, the outer border of the eyes.Infraocular carinae low, finely granulate, converging from foreborderof eyes to union at middle of posterior border of head. Vertex withM -shaped row of granules, laterad of this with two (1+ 1) ovatecallosities. Antennae moderately strong, more than one-and-a-halftimes as long as head (26:16); proportions of antennal segments, I toIV: 6:5:7.5:7.5. Rostrum reaches to hmdborder of rostral groove,latter closed posteriorly.Pronotum trapezoidal, much shorter than width across humeri(19:36). Forelobe narrower than hindlobe (27:36). Collar tiny,with a straight foreborder. Anterolateral angles slightly expanded,rounded, and reflexed, produced beyond the foreborder of collar.Lateral borders finely crenulate, straight and parallel at humeri,strongly converging anteriorly. Hindborder slightly convex mediallyand slightly sinuate mesad of hmdangles. Foredisc with two (1 + 1)stout, granulate ridges, convergent anteriorly, laterad of them withtwo (1+ 1) lower, granulate mflations. Hind-disc roughly granulate.Scutellum shorter than width at base (12:18). All sides carinate.Median carina T-shaped, moderately stout, granulate; disc alsogranulate.Hemelytra complete, reaching apical fourth of tergum VII. Coriumreaching middle of connexival segment III, basolateral border reflexed,forming a low carina, then shghtly sinuate, receding, and not re-flexed. Apical border bisinuate, shallowly exteriorly, and deeperinteriorly. Membrane large and corrugate.Abdomen longer than width across segment IV (60:45). Lateralborders evenly convex, rounded; postero-exterior angles barely pro-truding: VII forming a rounded lobe, reaching to the middle oftergum VIII. Posterior border of tergum VII carinate. Paratergiteslarge, triangular, reaching apical fourth of segment IX. Lattertricuspidate; median portion acute, lateral (valves) rounded. Spir-
20 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 119acles from II to VI ventral, placed far from border, VII and VIIIlateral and visible from above.Color.?Testaceous; head behind eyes, posterolateral angles ofpronotiun, lateral and basal carinae of scutellum, outer borders ofconnexiva, hindborder of tergum VII, entu-e terga VIII and IX, andtwo (1 + 1) large, dark spots on sterna III to V, infuscated. Hind-borders of connexival segments II to VI yeUow.Measurements.?Total length 4.40 mm.; width of pronotum 1.44mm.; width of abdomen 1.80 mm.HoLOTYPE.?Female, Atlantide (Maldonado), Uruguay, H.L.Parker collector, Dec. 24, 1942; deposited in the Drake collection(USNM type 67591).Notapictinus Uruguayensis, new species, is related to N. incaicusKormUev (1964, p. 473), from which it may be separated by the longeranterior process of the head; much shorter antennae; more producedanterolateral angles of the pronotum; granulate and not transverselyrugose scutellum; and yellow hindborders of connexival segments.Notapictinus platyceps, new speciesFigures 20, 21Male.?Elongate, with subparallel sides; macropterous.Head shorter than width across eyes (15:17). Anterior processshort, tapering forward, subtruncate anteriorly, reaching basal thirdof antennal segment I; genae as long as clypeus. Antenniferoustubercles short, dentiform, slightly divergent. Eyes relatively large,moderately prominent. Postocular borders rounded, without visibletubercle or tooth, not reaching outer border of eyes. Vertex withsemiobliterated granulation. Entu'e upper surface of the head flat-tened. Antennae strong and long, more than t^\'ice as long as head(35:15). Proportions of the antennal segments 9:7:11:8. Rostrumreaching hindborder of rostral groove; latter wide, closed posteriorly.Pronotum much shorter than width across humeri (20:37). Fore-lobe narrower than hindlobe (27:37). Collar sinuate anteriorly,rather indistinctly separated from the disc. Anterior angles producedforward far beyond the coUar as rounded lobes. Lateral bordersslightly convex, rounded on the forelobe; strongly convex on thehindlobe. Hindborder slightly convex in the middle. Interlobalsulcus thin but distinctly visible. Forelobe with two (1+ 1) almostobliterated callosities. Hindlobe granulate.ScuteUum shorter than width at base (12:18). All borders cari-nate; disc roughly, transversely rugose, with a moderately stoutmedian carina.Hemelytra reaching apical fom-th of tergum VII. Basolateralborder of corium reflexed forming a low carina. Apical angle
NO. 3548 ARADIDAE?KORMILEV 21produced into a long point, reaching to middle of connexival segmentIII. Apical border of corium deeply and widely sinuate.Abdomen longer than width across segment V (59:42); sidessubparallel. Connexival segment II short, triangular, semifusedwith III; latter very long, more than twice as long as II (15:7);other connexival segments normal. Postero-exterior angles not pro-truding on II to IV; slightly protruding on V and VI; rounded onVII. Hypopygium conical, almost as long as its width at base(9:10). Paratergites wide, fiat, curved, tips reposing on the sidesof hypopygium. Spiracles II to V ventral, placed far from border;VI to VIII lateral, visible from above.Color.?Head, pronotum, with exception of anterior angles,scutellum, hindhalves of connexival segments III to VI, middle oftergum VII, and hypopygium, ferruginous. Antennae, anteriorangles of pronotum, connexival segment II, and paratergites ochrebrown. Forehalves of connexival segments III to VI and almostentire VII, yellow. Ventral side of the body ferruginous, withyellow spots on connexivum.Measurements.?Total length 4.36 mm.; width of pronotum1.48 mm.; width of abdomen 1.68 mm.HoLOTYPE.?Male, Chapada, Brazil; September (USNM type67592).Notapictinus platyceps, new species, is related to N, breviceps(Champion) but is larger, has antennae with different proportionsof segments; anterior angles of the pronotum produced forward aslong lobes; and paratergites in the form of a hook.Notapictinus ornatus, new speciesFigures 22, 23Male.?Elongate ovate, regularly widening backward, thennarrowing; macropterous.Head almost as long as ^vidth across the eyes (16:16.5). Anteriorprocess long and slender, cleft anteriorly; genae much longer thanclypeus, reaching apical two-fifths of antennal segment I. Anten-niferous tubercles long, dentiform, slightly divergent, reaching basalfourth of antennal segment I. Eyes moderately large, protruding.Postocular tubercles small, dentiform, slightly produced beyondouter border of the eyes. Vertex with V-shaped row of granules, andlaterad of this with two (1 + 1) callosites; latter each with a thin,longitudinal carina. Antennae strong, twice as long as head (31.5:16).Proportions of antennal segments 8:5.5:11:7. Rostrum reachinghindborder of rostral groove; latter wide, closed posteriorly.Pronotum much shorter than width across humeri (19:36). Collarwide, slightly sinuate anteriorly, clearly separated from disc. Fore-
22 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 119lobe narrower than hindlobe (29:36). Anterior angles rounded,directed somewhat inward, produced beyond collar. Lateral bordersof forelobe convex, rounded; those of hindlobe less convex, crenulate.Hindborder slightly convex medially and laterally. Foredisc with adeep median silcus, laterad with two (1 + 1) large, fiat callosities.Inner borders of callosities carinate, discs each ^vith two obliquecarinae. Foiu- (2+2) curved carinae between callosities and lateralborders. Hind-disc roughly granulate.Scutellum shorter than width at base (12:19); aU borders carinate;lateral borders sinuate medially. Median carina thin, but prominent;disc roughly, transversely rugose.Hemelytra almost reaching hindborder of tergum VII. Baso-lateral border of corium reflexed; apical angle produced into a shortpoint, reaching basal fom-th of connexival segment III; apical borderconcave, forming two angles.Abdomen longer than \\ddth across segment V (59:44). Connexi-val segments all of about the same length. Postero-exterior anglesfrom IV to VI slightly protruding; on VII forming small rounded lobes.Paratergites small, clavate, reaching middle of hypopygium. Lattercordate, shorter than width at base (11:13.5); upper sm-face with astout, subtriangular ridge not reaching hindborder of hypopygium.Spiracles II to V ventral; VI ventral but placed near margin; VIIto VIII lateral.Color.?-Light ferruginous; connexival segments yellow brown,posterior borders yellow. Paratergites and tibiae ochre brown.Membrane light brown.Measurements.?Total length 4.32 mm.; width of pronotum1.44 mm.; width of abdomen 1.76 mm.HoLOTYPE.?Male, Rio de Janeiro, Brazil; October (USNM type67593).Notapictinus ornatus, new species, is related to A^. kjellanderiKormilev (1964, p. 472) from Peru, but the anterior angles of thepronotum are directed forward and inward ; lateral borders of the hind-lobe are less convex; postero-exterior angle VII forms small, roundedlobes; hypopygium more elongate, with sinuate lateral borders;antennal segment II much shorter than I (5.5:8), whereas in N.kjellanderi it is as long as I.
ReferencesKORMILEV, N. A.1956. Notas sobre Aradidae Neotropicales VI (Hemiptera) . Anales Soc.Cient. Argentina, vol. 162, pp. 148-159.1964. Notes on Aradidae in the Naturhistorijka Rijksmuseum, Stockholm:Hemiptera-Heteroptera. Ark. Zool., vol. 16, no. 23, pp. 463-479,21 figs.Parshlet, H. M.1921. Essay on the American species of Aradus (Hemiptera). Trans.American Ent. Soc, vol. 47, pp. 1-106, 7 pis.USINGER, R. L.1950. The origin and distribution of the apterous Aradidae (Hemiptera-Heteroptera) . Eighth Intern. Congr. Ent. Stockholm, pp. 174-179.UsiNGER, R. L., and Matsuda, R.1959. Classification of the Aradidae (Hemiptera), vol. 7, 410 pp., 102 figs.23
24 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 119
Figures 1-lS.?New species: Aradus saileri, male: 1, head and pronotum. A. ovatus,female: 2, head and pronotum, 3, tip of abdomen. A. harheri, male: 4, head and pro-notum. Aneurus pygmaeus: 5, male, head, pronotum, and scutellum; 6, male, tip ofabdomen; 7, female, tip of abdomen. A. nasutus, male: 8, head, pronotum, and scutellum;9, tip of abdomen. Proxius peruvianus, female: 10, head, pronotum and scutellum;11, tip of abdomen. Placogenis clarkei, female: 12, head and pronotum; 13, tip ofabdomen. NotapicUnus uruguayensis, female: 14, head and pronotum; IS, tip of abdomen.
ARADIDAE?KORMILEV 25
Figures 16-23.?New species, male: Miorrhynchus angulatus: 16, head and pronotum;17, tip of abdomen. M. undulatus: 18, head and pronotum; 19, tip of abdomen. No-tapidinus platycefs: 20, head and pronotum; 21, tip of abdomen. A'', ornatus: 22,head and pronotum; 23, tip of abdomen.
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