BUGS OF THE FAMILY MIRIDAE OF THE DISTRICT OFCOLUMBIA AND VICINITYBy H. H. KnightOf l(noa State CollegeandW. L. McAteeOf the United States Biological Survey The Miridae, formerly known as Caj)sidae, have commonly beencalled plant-bugs, but it is now known that numerous species amongthem are predaceous. They are more numerous in species than anyother family of Heteroptera and 200 species (counting a single vari-ety to each) and 23 additional varieties have been collected withina 20-25 mile radius of Washington, D. C. This result may be com-pared with the list of 296 species and 53 additional varieties froma much larger area, the entire State of New York,^ The District ofColumbia list contains 57 species that are not represented in theNew York catalogue, and the latter has 153 species that are not inthe former. There are 144 species common to the two lists.For the benefit of those interested in the fauna of Plummer Island,Md., it may be said that 88 species and 8 additional varieties ofMiridae have been collected on the island, and 43 other species and7 varieties in the Great Falls-Little Falls section of the PotomacRiver valley. When not made clear by the wording of the text,these features of local distribution are indicated by the abbreviationsP. I. and V. P. LThe list includes records of all available specimens in the collec-tions of the United States National Museum, of the United StatesBiological Survey, the private collections of the authors, and theOtto Heidemann collection in Cornell University. Records fromthe collection of the University of Helsingfors where there is muchmaterial sent to Dr. O. M. Renter by Heidemann have been tran-scribed for us by Dr. Hakan Lindberg to whom we are greatly in- 'Mem. 101, Cornell Agr. Exp. Sta., 192S, pp. 110-134.No. 2784.?Proceedings U. S. National Museum. Vol. 75. Art. 13.33072?29 1 1 2 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 75debted indeed for this assistance. Names of collectors in the follow-ing list are given with initials, except in the case of the six mostfrequently mentioned. These are: H. S. Barber, Otto Heidemann,H. H. Knight, W. L. McAtee, Theodore Pergande, and E. A.Schwarz. Subfamily PhylinaeGenus STHENARUS FieberSTHENARUS MCATEEI KnightOdenton, Md., July 12, 1914, July 29, 1917, on foliage of wildgrape, McAtee. Genus CHLAMYDATUS CurtisCHLAMYDATUS SUAVIS ReuterWashington, D. C, August 27, 28, September 1, Heidemann ; July25, August 6, 26, 1926, Knight; Beltsviiie, Md., August 14, 1914,McAtee. CHLAMYDATUS ASSOCIATUS UhlerBeltsviiie, Md., July 3, 1926, McAtee.Genus LEUCOPOECILA RenterLEUCOPOECILA ALBOFASCIATA ReuterWashington, D. C, June 11, November 11, 1886, Pergande; Sep-tember 13, 1913, McAtee; Arlington Farm, Va., October, 1921, P. L.Ricker, abundant and destructive at this time; Virginia, October 5,Pergande. Genus PLAGIOGNATHUS FieberPLAGIOGNATHUS POLITUS var. POLITUS UhlerGenerally distributed and common; season May 18 to October 11 ; usually on foliage of shrubs and weeds, including Atnbrosia trifida^but has been taken on flowers of Ceanothu^, Yiwca, Leonurus car-diaca^ and Cornus wnomdMin. P. I.PLAGIOGNATHUS POLITUS var. FLAVEOLUS KnightFairly common, apparently a fall form, September 4-November 3has been taken on flowers of Bidens trichosferma. P. I.PLAGIOGNATHUS NIGRONITENS KnightVienna, Va., July 11, 25, 1926, Knight; Beltsviiie, Md., July 3,1926, Knight. PLAGIOGNATHUS TINCTUS KnightPlummer Island, Md., June 7, 1914, McAtee; Eastern Branch nearBennings, D. C, June 7, 1914; Four-mile Run, Va., May 31, 1914,A. Wetmore; Glencarlyn to mouth of Four-mile Run, Va., June 17,1914, McAtee. AKT. 13 MmroAE OF DIST. OF COLUMBIA KNIGHT AND McATEE 3PLAGIOGNATHUS FLAVOSCUTELLATUS KnightPlummer Island, Md., June 7, 1914, McAtee; July 20, 1926, onwillow, Knight.PLAGIOGNATHUS ANNULATUS var. CUNEATUS KnightGreat P'alls, Md., June 18. Barber; Plummer Island, Md., June 6,1905, August 19, 1902, Schwarz and Barber; June 17, 1913, J. D.Hood. PLAGIOGNATHUS CARINATUS KnightForest Glen, Md., June 2, 1913, Heideman; Great Falls, Md., May23, 1915, McAtee; Beltsville, Md., July 3, 1926, on persimmon.Knight. PLAGIOGNATHUS SERICEUS HeidemannAbundant on flowers of various species of 2"dki in the parks andstreets of Washington, dates May 27 to June 20 ; has been taken alsoat Beltsville, Md., June 9, 1915, and at Odenton, Md., June 20, 1913,McAtee. PLAGIOGNATHUS NIGROLINEATUS KnightDyke, Va., May 28, 1913, on Rhu^s glabra^ McAtee, probably at-tracted only to flowers; known to breed on Quercus in other localities.PLAGIOGNATHUS ATRICORNIS KnightGlen Echo, Md., July 10; Bladensburg, Md., July 23, 1890, "onblack birch "; Forest Glen, Md., July 6, 1913, Heidemann.PLAGIOGNATHUS ALBIFACIES KnightFairly common ; dates of collection range from July 6 to Septem-ber 15. " P. I.PLAGIOGNATHUS BLATCHLEYI var. NUBILUS KnightWashington, D. C, June 12, August 7, 1884, September 5, 1890,October 2, 1889 ; Great Falls, Va., August 10, 1906, Heidemann.PLAGIOGNATHUS ALBATUS rar. ALBATUS Van DuzeeFairly common and well distributed ; has been collected as early asMay 2 and as late as July 12. P. I.PLAGIOGNATHUS ALBATUS var. VITTISCUTIS KnightWashington, D. C, July 15, 1894, Heidemann; Branchville toBeltsville, Md., June 4, 1914, E. R. Kalmbach ; Great Falls, Md., May23, 1915; Glencarlyn to mouth of Four-mile Run, Va.. June 17, 1914,McAtee. 4 PROCEEDINGS OF THE NATION.VL, MUSEUM vol.75PLAGIOGNATHUS SIMILIS var. SIMILIS KnightGlencarlyn to mouth of Four-mile Run, Va., June 17, 1914, McAtee;Plummer Island, Md., July 20, 1926, Knight.PLAGIOGNATHUS SIMILIS var. FURVUS KnightPlummer Island, Md., July 20, 1926, Knight.PLAGIOGNATHUS ROSICOLA KnightGreat Falls, Md., July 5, 1905; Plummer Island, Md., on wildroses, June 30, 1905, Heidemann.PLAGIOGNATHUS FULVmUS KnightOdenton, Md., July 4, 1913, July 12, 1914, McAtee.PLAGIOGNATHUS DELICATUS UhlerThe food plant of this species is honey locust {Gleditsia triacanthos)upon which it is sometimes common ; adults have been collected fromMay 13 to June 21.PLAGIOGNATHUS CORNICOLA KnightMount Vernon, Va., June 27, 1915, on Corrmm amomutih; Belts-ville, Md., June 23, 1918, McAtee.PLAGIOGNATHUS PUNCTATIPES KnightGlencarlyn, Va., May 30, 1906, D. H. demons ; Washington, D. C,July 17, 1907, McAtee.PLAGIOGNATHUS DISPAR KnightForest Glen, Md., June 21, 1914, Heidemann; Glen Echo, Md.,June 10, 1923, J. R. Malloch.PLAGIOGNATHUS CARNEOLUS KnightOdenton, Md., May 5, 1918, McAtee; Falls Church, Va., May 13,1901, S. A. Rohwer.Genus MICROPHYLELLUS ReuterMICROPHYLELLUS MODESTUS ReuterFairly common May 7 to June 17; frequent on elm where it hasbeen observed preying on Schizoneura americmia; has been taken onhickory also, and on flowers of Tilia americmi'd. P. I.MICROPHYLELLUS LONGIROSTRIS KnightGlen Echo, Md., June 17, 1923, McAtee. ART. 13 MIRIDAE OF DIST. OF COLUMBIA KNIGHT AND McATEE 5Genus RHINOCAPSUS UhlerRHINOCAPSUS VANDUZEEI UhlerRock Creek, D. C, June 24, 1906; Glencarlyn, Va., July 1, 1906,D. H. Clemons; Beltsville, Md., June 14, 1914, June 23, 1918, McAtee!Genus CRIOCORIS FieberCRIOCORIS SALIENS ReuterMaryland near Plummer Island, May 18, 1913, May 24, 1914, June7, 1914; Branchville to Beltsville, Md., June 4, 1914; Maywood, Va.,May 21, 1922, McAtee. Genus PSALLUS FieberPSALLUS ANCORIFER FieberFairly common and well distributed; has been collected from May22 to July 11 ; breeds on clover.PSALLUS MORRISONI KnightBeltsville, Md., July 4, 1915, McAtee; Glen Echo, Md., July 12,1922, at light, J. R. Malloch ; Scott's Run, Va., August 2, 1914, L. O.Jackson. PSALLUS CLAVICORNIS KnightWashington, D. C, March 3, 1880, Pergande.Genus LEPIDOPSALLUS KnightLEPIDOPSALLUS CLARICORNIS KnightWashington. D. C, May 20, June 8, 1905, Heidemann ; Little Hunt-ing Creek, Va.. May 24, 1914. A. Wetmore.LEPmOPSALLUS RUBmUS UhlerWashington, D. C, June 23, 1897, July 6, 1893, Heidemann ; GreatFalls, Va., July 18, 1926, on willow. Knight.LEPmOPSALLUS OLSENI KnightBranchville to Beltsville, Md., June 4, 1914; Beltsville, Md., June15, 1913, McAtee. Genus REUTEROSCOPUS KirkaldyREUTEROSCOPUS ORNATUS RenterAbundant and generally distributed ; season June 7 to October 11 ; usually on ragweed {Ambrosia) ; comes to light. P. I. 6 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 75REUTEROSCOPUS SULPHUREUS RenterHyattsville, Md., September 6, 1914, on Solomwrn carolinianum;Beltsville, Md.. July 3, 1926, McAtee; Washington. D. C, July 3,1026. Knight. Genus LOPUS HahnLOPUS DECOLOR FallenRock Creek, D. C, June 17, 1902, Heidemann; Beltsville, Md.,July 4, 1912; Odenton, Md., July 12, 1914. McAtee; Vienna, Va.,July 11, 1926, Knight. Subfamily DicyphinaeGenus HYALIODES ReuterHYALIODES VITRIPENNIS van VITRIPENNIS SayCommon, season June 6 to September 27 ; predacious, occasionallybites man; observed preying on Dact'ifJopius^ on sycamore, August21, 1879; is common on mulberry among Corythucha pallida. P. I.HYALIODES VITRIPENNIS var. DISCOIDALIS RenterCommon, with the typical variety ; records from June 8 to August22. P. I. Genus DICYPHUS FieberDICYPHUS AGILIS UhlerRosslyn, Va., July 7, Heidemann.DICYPHUS MINIMUS UhlerWashington, D. C, May 15, 1899, June 8, 1898, on tobacco,Heidemann. DICYPHUS FAMELICUS UhlerWashington, D. C, June 7, 1885, July 4, 1887, Pleidemann.Genus MACROLOPHUS FieberMACROLOPHUS BREVICORNIS KnichtWashington, D. C. July 2, 1904, Heidemann.MACROLOPHUS SEPARATUS UhlerBladensburg, Md., July 7, September 11, 1892; Odenton, Md.,July 17, 1906; Washington, D. C, August 5, 1885, Heidemann;Glencarlyn, Va., September 14, 1918, McAtee. ART. 13 MIRIDAE OF DIST. OF COLUMBIA KNIGHT AND McATEE 7Subfamily BryocorinaeGenus MONALOCORIS DahlbomMONALOCORIS FILICIS LinnaeugMay be collected on ferns almost anywhere; season for adults asnow known is May 4 to August 22. P. I.Genus PYCNODERES GuerinPYCNODERES DILATATUS ReuterCommon; active season May 20 to October 30; sieved December14, February 23 ; collected in flowers of Pontederia, September 24 ; frequent on oak sprouts. P. I.PYCNODERES OBSCURATUS KnightGreat Falls, Va., June 30, 1914, A. Wetmore; Glen Echo, Md., .summer 1922, J. C. Bridwell.Genus SIXEONOTUS ReuterSIXEONOTUS INSIGNIS RenterFairly common ; adults have been collected from June 6 to August21 ; food plants include Chenopodiu^n album, Nahalus albus, andMesadenicb atriplicifolia. P. I.SIXEONOTUS TENEBROSUS DistantWashington, D. C, June &, 1905, June 15, 1891, August 10, 1887,Heidemann. Subfamily CylapinaeGenus CYLAPUS SayCYLAPUS TENUICORNIS SayRather commonly collected when its haunts are understood; fre-quents fallen limbs and trunks especially those having velvetyfungus growths; adults have been collected from July 4 to Septem-ber 25, and nymphs from May 3 to August 11. P. I.Genus FULVIUS StalFULVIUS BRUNNEUS ProvancherFairly common in haunts somewhat similar to those of Cylajmsienuicomis but on boards or logs more in contact with the ground.Season July 9 to August 30; comes to light. P. I. 8 PROCEEDINGS OF THE NATIONAL MUSEUM vol.75FULVIUS IMBECILIS SayEemarks under the preceding species apply; season July 5 toSeptember 17. P. I. Genus PERITROPIS UhlerPERITROPIS SALDAEFORMIS UhlerBladensburg, Md., July 20, 28, 1890, nymphs and adults on drybranches of trees, Heidemann.Subfamily ClivineminaeGenus BOTHYNOTUSBOTHYNOTUS MODESTUS WirtnerMaryland near Plummer Island, June 17, 1913, J. D. Hood.Subfamily DeraeocorinaeGenus EUSTICTUS RenterEUSTICTUS FILICORNIS WalkerWashington, D. C, July 12, 1890; Bladensburg, Md., July 20,1890, O. Heidemann. EUSTICTUS NECOPINUS KnightStubblefield Fall, Va., July 4, 1918, on hickory, McAtee.EUSTICTUS SALICICOLA KnightGlen Echo, Md., July 23, 1921, J. K. Malloch.Genus EURYCHILOPTERELLA ReuterEURYCHILOPTERELLA LURmULA RenterThe original material of this species was collected on trees in theDepartment of Agriculture grounds, on which the nymphs resem-bling mealybugs were observed, and from which adults were reared.The dates it has been collected in Washington run from June 12 toJuly 30 ; specimens are at hand also from Bladensburg, Md., July 10,1909, Heidemann; and Glen Echo, Md., July 2, 1922, J. R. Malloch.Genus DERAEOCORIS KirschbaumDERAEOCORIS NEBULOSUS UhlerFairly common, active season March 25 to November 8; frequenton alder ; collected also on hickory and Ptelea trifoliata; under barkof sycamore December 6, under birch bark. February 9; comes tolight. P. I. AET. 13 MIEroAE OF DIST. OF COLUMBIA KNIGHT AND McATEE 9DERAEOCORIS POECILUS McAteeFairly common; active season March 8 to August 21; occurs onAhhus Tugoscb; collected under bark of birch, maple, and sycamorein winter. P. I. DERAEOCORIS HISTRIO RenterDistrict of Columbia, February 21, 1887, November 24, 1886, Per-gande; April 17 (Uhler collection).DERAEOCORIS NUBILUS KnightVirginia, October 5, Pergande.DERAEOCORIS FASCIOLUS var. CASTUS KnightRock Creek Park, D. C, June 26, 1921; Glen Echo, Md., June 11,25, July 16, 1922, J. R. Malloch.DERAEOCORIS GRANDIS UhlerSeveral specimens have been taken on Plummer Island, Md., atdates ranging from June 4 to July 8, once at light ; there is a recordalso for Beltsville, Md., June 14, 1914, McAtee.DERAEOCORIS APHIDIPHAGUS KnightGlen Echo, Md., July 15, 1893 (Uhler collection) ; Plummer Island,Md., June 15, 1902, Heideman; June 4, 1905; Washington, D. C,July 6, 1907, McAtee; Great Falls, Va., July 18, 1926, Knight;Mount Vernon, Va., June 6, 27, 1915, McAtee; Pergande records itas feeding on Schizoneura aniericana,.DERAEOCORIS QUERCICOLA KnightWashington, D. C, July 2, 1907, Heidemann; June 15, 1925, onQicercus Tiiacr'ocar'pa ; Beltsville, Md., June 23, 1918, on Quercus alba,McAtee. DERAEOCORIS NITENATUS KnightFairly common ; dates of collection range from May 25 to Septem-ber 2. P. I. DERAEOCORIS NIGRITULUS KnightCommon on Pvrms virginiana; season May 9 to July 12. V. P. I.DERAEOCORIS SAYI RenterPlummers Island, Md., July 8, 1907, Schwarz.Subfamily OrthotylinaeGenus SEMIUM ReuterSEMIUM HIRTUM ReuterThis little species is seen more often than collected, its agility ren-dering it difficult to capture, and its delicacy of structure results in33072?29 2 10 PROCEEDINGS OF THE NATIONAL MUSEUM vol.75most captures being so damaged as not to be worth preserving; theinsect is found on the underside of leaves, or on sand beneath theleaves, of species of EwpJiorhia {Tithipnalopsis) ; records for speci-mens at hand are Washington, D. C, July 20^ 1894, 1899, August 12,15, 20, 22, Heidemann ; Falls Church, Va,', N. Banks.Genus PARTHENICUS ReuterPARTHENICUS JUNIPERI HeidemannFairl}^ c6mmon on red cedar ; has been taken also on Virginia pine ; season for adults June 8 to October 12. P. I.Genus HALTICUS HahnHALTICUS CITRI AshmeadAbundant, season May 9 to October 30. P. I.Genus STRONGYLOCORIS BlanchardSTRONGYLOCORIS STYGICUS SayCommon ; adults have been collected from May 9 to August 8, andnymphs from May 4 to 18. P. I.Genus ILNACORA ReuterILNACORA MALINA UhlerCommon ; May 30 to July 4. P. I.ILNACORA STALII RenterFairly common on giant rairvreed {Avihrosia frifida). June 16to August 16. P. I. Genus LOPIDEA UhlerLOPIDEA CONFLUENS SayFairly common. May 24 to September 5. P. I,LOPmEA DAVISI KnightWashington, D. C, June, 1916, F. PI, Chittenden; near ChevyChase, Md., July 6, 1913, McAtee; Takoma Park, Md., August 15,1916, on phlox; Glen Echo, Md., August 22, 1922, McAtee; GlenEcho, Md., July 25, 1926, Knight; Plummer Island, Md., June 24,1906. McAtee. LOPIDEA HEIDEMANNI KnightCommon, May 18 to August ; breeds on elm, yarrow, and phlox ; has been collected also on asparagus, black walnut, and Virginia pine.P. I. ART. 13 MIEIDAE OF DIST. OF COLUMBIA KNIGHT AND McATEE HLOPIDEA INCURVA KnightMaryland near Pliimmer Island, June 22, 1921, nymphs and adultson honey locust, Barber; Washington, D. C, July 12, 19, 1926, onhoney locust, Knight. LOPIDEA ROBINIAE UhlerAbundant on black locust {Rohhiia pseudacacia) ; adults have beencollected from June 7 to August 19, and nymphs from June 8 toffuly 29; occasionally taken on other plants, including scrub pine,grape, yucca, and wild carrot; comes to light. P. I.LOPIDEA MEDIA SayCommon May 12 to July 19; on alder {Alnus rugom) ; a specimenwas found sucking a carabid beetle {Harfalus). July 19, 1913, R. C.Shannon. P. I. LOPIDEA SAYI KnightNew Alexandria, Va., Plummer Island, Md.. July 1907, WilliamPalmer; Plummer Id., Md., June 15, 1902, Heidemann; June 29,1913, R. C. Shannon; July 7, 21, 1907, A. K. Fisher; July 20, 1926,on hornbeam {Ostrya virginicma.), Knight.LOPIDEA STAPHYLEAE KnightCollected on Plummer Island, Md., on numerous dates rangingfrom June 15 to August 9 ; also at Scott's Run, Va., on August 2, 1914,McAtee; and at Great Falls, Va., June 27, N. Banks.LOPIDEA REUTERI KnightGlencarlyn, Va., July 25, N. Banks.LOPIDEA CAESAR ReuterGlencarlyn, Va., July 1, 1906, D. H. demons.LOPIDEA INSTABILIS var. INSTABILIS ReuterFairly common, June 23 to August 12; on goldenrod. V. P. I.LOPIDEA INSTABILIS var. MARGINALIS ReuterGlen Echo, Md.. July 20, Heidemann; Washington, D. C, June30 to August 6, 1926, Knight.Genus MELANOTRICHUS RouterMELANOTRICHUS FLAVOSPAKSUS SahlbcrgAbundant on Chenopodium s})p; May 23 to September 29; comesto light. V. P. I. MELANOTRICHUS CATULUS Van DuzecWashington, D. C, May 16, 1902, Heidemann. 12 PROCEEDIISrGS OF THE ISTATIONAL MUSEUM vol. 75Genus ORTHOTYLUS FieberORTHOTYLUS CHLORIONIS SayAbundant on honey locust ; April 6 to June 10. V. P. I.ORTHOTYLUS SUBMARGINATUS SayWashington, D. C, June 20, July 10, 28, Forest Glen, Md., June13, 1914, Heidemann; Plummer Island, Md., July 11, Barber; Oden-ton, Md., July 4, 1913, McAtee; Vienna, Va., July 11, 1926, Knight;host black locust {Rohinia pseudacacla) . ORTHOTYLUS VIRIDIS Van DuzeeFairl}^ common, on Salix nigra^ June 4 to July 26. P. I.ORTHOTYLUS MODESTUS Van DuzeeFairly common on Salix nigra, June 4 to July 4. P. I.Genus DIAPHNIDIA UhlerDIAPHNIDIA CAPITATA Van DuzeeWashington, D. C, June 11, 1886; Rock Creek, D. C, June IT,1893, Heidemann. DLA.PHNIDIA PELLUCmA UhlerFairly numerous; season May 31 to July 20; has been collected onblack locust, on white oak, and on bur oak (the latter in a park).DLVPHNmiA HEIDEMANNI KnightCollected at Washington, D. C, by Heidemann at dates rangingfrom May 7 to October 15 ; and at Henson's Creek, Md., July 4, 1887 ; Heidemann gave the food plant as ash.Genus REUTERIA PutonREUTERIA IRRORATA SayCommon, June 30 to August 20 ; has been collected on elm, chestnut,and hickory; comes to light. P. I.Genus CERATOCAPSUS RenterCERATOCAPSUS MCATEEI KnightOdenton, Md., July 12, 1914; Laurel, Md., October 11, 1914,McAtee. CERATOCAPSUS MODESTUS UhlerCommon, July 4 to August 3; occurs on hickory, oak, and chestnut;comes to lieht. P. I. 1 ART. 13 MIRIDAE OF DIST. OF COLUMBIA KNIGHT AND McATEE 13CERATOCAPSUS NIGELLUS KnightOdenton, Md., July 12, 1914; Veitch, Va., June 17, 1914, on chest-nut, McAtee. CERATOCAPSUS RUBRICORNIS KnightWashington, D. C, July 12, 1891, Heidemann.CERATOCAPSUS FASCIATUS UhlerCommon on hickory; season as shown by collected specimens, June30 to August 29. CERATOCAPSUS SETOSUS RenterFairly common, on ferns, April 25 to August 30; comes to light.P.I. CERATOCAPSUS PUMILUS UhlerFairly common. May 20 to August 20. P. I.CERATOCAPSUS FUSCINUS KnightWashington, D. C, May 11, 1905, D. H. demons; June 22, 1890,July 10, 1898, Heidemann; June 30, 1919, L. L. Buchanan; GlenEcho, Md., July 10, Heidemann; Plummer Island, Md., July 14,1915, McAtee. CERATOCAPSUS VICINUS KnightOdenton, Md., July 12, 1914, July 29, 1917, on chestnut, McAtee.CERATOCAPSUS DIGITULUS KnightOdenton, Md., July 10, 1918; Great Falls, Va., August 21, 1917,McAtee. CERATOCAPSUS BARBATUS KnightFrequent; sea&on June 14 to August 8; occurs on Virginia pine.V. P. I. CERATOCAPSUS UNIFORMIS KnightWashington. D. C, July 30, 1907; Plummer Id., Md., July 19, 1914;August 2, 1914; Odenton, Md., July 12, 1914; Mount Vernon, Va.,August 1, 1915, McAtee.CERATOCAPSUS COMPLICATUS KnightBeltsville, Md., August 14, 1914; Odenton, Md., July 29, 1917. onViti^; Scotts Run to Ball's Hill, Va., August 12, 1917, McAtee.CERATOCAPSUS QUADRISPICULUS KnightGlen Echo, Md., July 23, 1922, J. R. Malloch. 14 PROCEEDINGS OF THE NATIONAL MUSEUM vol.75Genus ALEPIDIELLAALEPIDIELLA HEIDEMANNI PoppiusWashington, D. C, July 18, 1907, McAtee; July 11, 1924, at light,J. R. Malloch; Glen Echo, Md., July 17, 1926, on PiniDS virginiamu^Knight. Genus ALEPIDIA ReuterALEPIDIA GRACILIS var. GRACIUS UhlerWashington, D. C, July 28, 1880, July 4, 1881, Pergande; June 29,1897, Heidemann ; Plummer Id., Md., July 14, 1915, McAtee.ALEPIDIA GRACILIS var. SQUAMOSA KnightGlen Echo, Md., July 17, 25, 1926; Vienna, Va., July 11, 1926;Knight. Genus PILOPHORUS HahnPILOPHORUS DEPICTUS KnightWashington, D. C, July 12, 1909, Heidemann; Beltsville, Md.,June 15, 1915, on Pinus virginiana, McAtee.PILOPHORUS CRASSIPES HeidemannCommon, on Plrius virginiana^ June 8 to October 4. P. I.PILOPHORUS AMOENUS UhlerThe most common species of the genus, occurs on Pinus virginia/ia,June 8 to August 14. V. P. I.PILOPHORUS LAETUS Van DuzeeCommon; season of collection June 15 to September 3; occurs onVirginia pine. V. P. I.PILOPHORUS JUNIPERI KnightWashington, D. C, July 8, 1925, July 12, 1926, Knight : PiummerId., Md., July 14, 1915, McAtee; host red cedar {Jimiperus vir-ginia/na) . PILOPHORUS WALSHI UhlerWashington, D. C, July 6, 1897; July 15, on Prunus ph'.sardn,Heidemann; Washington, D. C, July 8, 1926, breeding on honeylocust {Gledltsia triacanthos), Knight; Odenton, Md.. July 28. 1917,(.11 hickory; Stubblefield Fall, Va., July 4, 1918, on hickoiy, McAtee.PILOPHORUS BRUNNEUS PoppiusFairly common. June 4 to August 17, occui-s on hickory, willow,and aider. P. I. ART. 13 MIRIDAE OF DIST. OF COLUMBIA KNIGHT AND McATEE 15Genus SERICOPHANES ReuterSERICOPHANES HEIDEMANNI PoppiusPlumraer Island, Md., April 24, 1921, in trap light, Barber.Subfamily MirinaeGenus COLLARIA ProvancherCOLLARIA OCULATA ReuterCommon, May 19 to October 14. P. I.Genus MIRIS FabriciusMIRIS DOLABRATUS LinnaeusCommon, May 6 to July 7. P. I.Genus TRIGONOTYLUS FieberTRIGONOTYLUS RUFICORNIS GoeffroyPlummer Island, Md., July 26, 1903, Heidemann.TRIGONOTYLUS PULCHER ReuterWashington, D. C, September 17. 1889, November 3, 1903, Heide-mann. Genus STENODEMA LaporteSTENODEMA TRISPINOSUM ReuterCommon ; adults have been collected from xA.pril 14 to October 16,and nymphs from June 8 to October 5 ; comes to light. P. I.Genus ONCEROMETOPUS ReuterONCEROMETOPUS NITENS KnightGlen Echo, Md., 1922, J. C. Bridwell.Subfamily CapsinaeGenus PLATYTYLELLUS ReuterPLATYTYLELLUS NIGRICOLLIS ReuterGlen Echo, Md., summer 1922, J. ' C. Bridwell ; Virginia nearPlummer Island. Md., July 19, 20, 1913, W. D. Appel ; Falls Church,Va., August 31, N. Banks.PLATYTYLELLUS RUBROVITTATUS StalWashington, D. C, September, 10, 1889, Heidemann. 16 PEOCEEDINGS OF THE NATIONAX, MUSEUM vol. V5PLATYTYLELLUS INSIGNIS SayFrequent ; dates of collection range from June 20 to August 5. P. I.PLATYTYLELLUS FRATERCULUS KnightPlummer Island, Md., July 24, 1903, W. V. Warner ; July 14, 1915,McAtee; Jacksons Island, Md,, June 22, 1902, Barber; Virginia nearthe District of Columbia, July 19, Pergande.PLATYTYLELLUS CIRCUMCINCTUS SayRock Creek, D. C, June 22, 29, 1890, Heidemann; Difficult Run,Va., July 12, 1906, F. Knab; Great Falls, Va., June 20, N. Banks.PLATYTYLELLUS INSITIVUS var. INSITIVUS SayFrequent; season June 2 to July 14. P. I.PLATYTYLELLUS INSITIVUS var. ANGUSTICOLLIS KnightPlummer Island, Md., June 2, 1912, Schwarz and Barber; Glencar-lyn, Va., July 1, 1906, F. Knab.PLATYTYLELLUS FRATERNUS var. FRATERNUS KnightLakeland, Md., June 25, 1906, F. Knab; Maryland near PlummerIsland, June 13, 1914, R. C. Shannon ; Maywood, Va., June 16, 1921,McAtee. PLATYTYLELLUS FRATERNUS var. RUBROMARGINATUS KnightGrassymead, Va., June 19, 1906, F. Knab.PLATYTYLELLUS FRATERNUS var. DISCIFER KnightBladensburg, Md., June 26, 1902, Heidemami ; Cabin Jolm Bridge,Md., June 26, 1911, E. Shoemaker.PLATYTYLELLUS FRATERNUS var. REGALIS KnightWashington, D. C, May 4, 1884, Heidemann.Genus NEOBORUS DistantNEOBORUS AMOENUS var. AMOENUS RenterCommon on ash ; adults collected from May 20 to October 12 andnymphs from May 30 to September 5 ; comes to light. P. I.NEOBORUS AMOENUS var. SCUTELLARIS RenterWith the typical variety and about as common in its season ; datesof collection range from May 21 to June 19. P. I.NEOBORUS AMOENUS var. SIGNATUS RenterWith the typical variety but less frequent; season as shown byspecimens at hand May 20 to June 5. ABT. 13 MIRIDAE OF DIST. OF COLUMBIA?KNIGHT AND McATEE 17NEOBORUS RUFUSCULUS KnightFalls Church, Va., May 13, 1914, A. Wetmore.NEOBORUS VITTISCUTIS KnightPlummer Island, Md., June 7, July 19, 1914; Virginia near Plum-mer Island, Md., June 17, 1913, McAtee; Great Falls, Va., June 13,1908, Heidemann. NEOBORUS GEMINUS SayPlummer Island, Md., June 7, 1914, McAtee.NEOBORUS CANADENSIS Van DuzcePlummer Island, Md., May 24, 1914, McAtee.Genus XENOBORUS RenterXENOBORUS CHIONANTHI var. CHIONANTHI KnightHas frequently been collected at Plummer Island, Md., on its hostthe fringe tree at dates ranging from June 6 to August 25; also atGreat Falls, Va., June 13, 1908; Heidemann; and at Dunn Loring,Va., August 30, 1916, McAtee.XENOBORUS CHIONANTHI van NIGRELLUS KnightPlummer Island, Md., July 20, 1926, Knight.XENOBORUS NEGLECTUS KnightFour-mile Run, Va., May 31, 1914, McAtee.Genus COCCOBAPHES UhlerCOCCOBAPHES SANGUINARIUS UhlerPiney Branch, D. C, June 12, 1906; Washington, D. C, June,1906, D. H. Clemons; Bladensburg, Md., June 23, 1916, R. C. Shan-non ; Beltsville, Md., June 23, 1918, McAtee.Genus LYGUS HahnLYGUS PRATENSIS var. OBLINEATUS SayThe most abimdant heteropterous insect of the region; has beencollected in the active state in every month of the year and can beobtained in dormant or semidonnant condition on Virginia pine, inmullen rosettes, and among drj^ leaves any time in winter ; frequentsmany kinds of flowers and sometimes becomes destructive to culti-vated plants ; comes to light ; sometimes bites man. P. I.LYGUS PRATENSIS van STRIGULATUS WalkerGenerally distributed; has been collected on numerous occasionsat dates ranging from April 1 to August 22; found hibernating inmullen rosettes. V. P. I. 18 PROCEEDINGS OF THE NATIONAL MUSEUM vol.75LYGUS VANDUZEEI KnightVirginia near Plummer Island, Md., June 2, 1916, flowers ofSpiraea aruncus, McAtee ; known to breed on Solidago.LYGUS RUBICUNDUS FallenCommon, April 19 to November 14 ; breeds on Salix. P. I.LYGUS CAMPESTRIS LinnaeusWashington, D. C, July 20, 1888, June 24, 1888, on Dwucus carota,Pergande; June 17, Heidemann; Eastern Branch near Benning,D. C, February 23, 1913, under bark of Pimis virginiana^ McAtee.LYGUS PABULINUS LinnaeusCommon, May 21 to November 3. P. I.LYGUS PLAGIATUS UhlerGenerally distributed but infrequent; dates of collection rangefrom April 22 to October 30; has been taken on giant ragweed. P. I.LYGUS APICALIS FieberGenerally distributed but infrequent; season May 4 to October 12.P. I. LYGUS (NEOLYGUS) GENESEENSIS KnightWashington, D. C, June 4, 1887; Forest Glen, Md., May 23, 30,1915, Heidemann; May 30, 1914, on white ash; Beltsville, Md., May14, 1014, May 31, 1920, June 23. 1918, on white oak; Oclenton, Md.,May 20, 1915; Dyke, Va., May 19, 1918, on white oak, McAtee.LYGUS (NEOLYGUS) INCONSPICUUS KnightWashington, D. C, June 13, 1890; Marshall Hall, Md., June 13,1891, Heidemann; Beltsville, Md., June 14, 1914, June 23, 1918; Glen-carlyn to mouth of Four-mile Run, Va., June 17, 1914, Scotts Run,Va.," July 4, 1916, McAtee.LYGUS (NEOLYGUS) CARYAE var. SUBFUSCUS KnightBeltsville, Md., May 31, 1920. June 23, 1918, McAtee.LYGUS (NEOLYGUS) COMMUNIS KnightFour-mile Run, Va., May 31. 1914, McAtee.LYGUS (NEOLYGUS) QUERCALBAE KnightBeltsville, Md., June 23, 1918; May 31, 1920, McAtee.LYGUS (NEOLYGUS) JOHNSONI KnightGlencarlyn, Va., May 30, 1906, D. H. Clemons. ftttT. k: MIRIDAE of DIST. OF COLUMBIA KNIGHT AND McATEE 19LYGUS (NEOLYGUS) CLAVIGENITALIS KnightBeltsville, Md., July 4, 1915, on Alnus rugosa^ McAtee.LYGUS (NEOLYGUS) HIRTICULUS Van DuzeeBranchville to Beltsville, Md., June 4, 1914; Beltsville, Md., June23, 1918, McAtee. LYGUS (NEOLYGUS) LAUREAE KnightBeltsville, Md., June 23, 1918, McAtee.Genus DICHROOSCYTUS FieberDICHROOSCYTUS SUSPECTUS ReuterPetworth, D. C, May 21, 1905, D. H. Clemens; Washinirton, D. C,May 22, 1895; Rock Creek, D, C, June 10, Heidemann; Branchvilleto Beltsville. Md., June 4, 1914; Beltsville, Md., June 15, 1914,McAtee. DICHROOSCYTUS ELEGANS HeidemannGenerally distributed and apparently fairly numerous; season asSO far known runs from May 9 to June 18; occurs on red cedar andVirginia pine. P. I.DICHROOSCYTUS REPLETUS HeidemannCollected in the District of Columbia, chiefly on red cedar, at yari-ous dates from June 7 to July 25, also at Marshall Hall, Md., June 13,1891, Heidemann; and Cabin John, Md., June 19, 1915, V. A.Roberts. Genus POLYMERUS HahnPOLYMERUS BASALIS var. BASALIS ReuterAlmost as abundant as Lygus pratensis var. oblineatus; actii^e sea-son, April 3 to October 23; taken from muUen rosettes, Marylandnear Plummer Island, January 18, 1914; breeds on ragweed and fre-quents various flowers ; comes to light. V. P. I.POLYMERUS BASALIS var. FUSCATUS KnightLocalities for this form as so far collected, with one exception, areon the Coastal Plain ; dates range from June 15 to October 3 ; has beentaken on evening primrose and ragweed; the Piedmont locality isGlen Echo, Md., summer 1922, J. C. Bridwell.POLYMERUS VENATICUS UhlerHas been encountered in small numbers on numerous occasions;dates of collection range from May 28 to July 1; breed? on golden-rod. V. P. I. 20 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 75POLYMERUS TINCTIPES KnightGreat Falls, Md., May 3, 1915, on lichen-covered rocks, J. D. Hood.POLYMERUS PUNCTIPES KnightBranchville to Beltsville, Md., June -1, 1914, McAtee, E. R. Kalm-bach; Beltsville, Md., June 9, 1915, McAtee.Genus POECILOCAPSUS ReuterPOECILOCAPSUS LINEATUS FabriciusFairly common ; adults have been collected from May 9 to June 29and nymphs from May 9 to July 26. P. I.Genus HORCIAS DistantHORCIAS DISLOCATUS var. GONIPHORUS SayWashington, D. C, May 18, 1887, Heidemann.Genus STENOTUS JakowlefifSTENOTUS BINOTATUS FabriciusCommon, season June 3 to July 15; breeds on grasses; comes tolight. V. P. I. Genus ADELPHOCORIS ReuterADELPHOCORIS RAPIDUS SayAbundant, almost as much so as Lygus pratensis var. ohlineatits ',adults have been collected from May 18 to October 11 and nymphsfrom May 19 to August 10 ; comes to light. P. I.Genus GARGANUS StalGARGANUS FUSIFORMIS SayCommon, June 7 to October 13. P. I.Genus PARACALOCORIS DistantPARACALOCORIS SCRUPEUS var. SCRUPEUS SayWashington, D. C, July 18, 1908, Heidemann; Beltsville, Md.,June 14, 1914 ; June 9, 1915, McAtee ; all the forms of this speciesseem to breed on Virginia Creeper {Psedera quinqiiefolia).PARACALOCORIS SCRUPEUS var. PERCURSUS McAteePlummer Island, Md., June 7, 1914, McAtee; June 30, 1907, A. K.Fisher ; Four-mile Run, Va., May 31, 1914, A. Wetmore. ABT. 13 MLRIDAE OF DIST, OF COLUMBIA KNIGHT AND McATEE 21PARACALOCORIS SCRUPEUS var. BIDENS McAtccPlummer Island, Md., June 5, 1903, W. V. Warner; June 8, 1914,at light, Schwarz and R. C. Shannon; Beltsville, Md., June 14,1914, June 9, 1915, July 1, 1914, July 4, 1915, June 18, 1916, McAtee;July 3, 1926, Knight.PARACALOCORIS SCRUPEUS var. ARDENS McAteeChain Bridge, Md., June 9, 1905, D. H. Clemens.PARACALOCORIS HAWLEYI var. HAWLEYI KnightRock Creek, D. C, June 24, 1906, D. H. Clemons ; Beltsville, Md.,June 9, 1915, June 14, 1914, June 18, 1916, 1918, McAtee; this speciesalso breeds on Virginia Creeper.PARACALOCORIS HAWLEYI var. ANCORA KnightBeltsville, Md., June 14, 1914, June 18, 1916, June 23, 1918, July 4,1916, McAtee. PARACALOCORIS HAWLEYI var. FISSUS McAteeBeltsville, Md., June 14, 1914; June 18, 1916, McAtee.PARACALOCORIS COLON var. COLONUS McAteeWashington, D. C, July 19, 1926, Knight; Beltsville, Md., July4, 1915, June 14, 1914, June 23, 1918; Odenton, Md., July 10, 1918,McAtee ; another breeder on Virginia Creeper.PARACALOCORIS COLON var. CASTUS McAteeBeltsville, Md., June 14, 1914, June 9, July 4, 1915, McAtee; July 3,1926, Knight. PARACALOCORIS COLON var. AMICULUS McAteeBeltsville, Md., July 4, 1915; Plummer Island, Md., June 17,1906, McAtee.PARACALOCORIS HEIDEMANNI var. HEIDEMANNI RenterPlummer Island, Md., August 5, 1914, R. C. Shannon; Jul}^ 19,26, 1914, July 14, 21, 1915, August 9, 16, 1914, McAtee; Occoquan,Va., August 19, 1917, McAtee; Vienna, Va., August 1, 8, 1926,Knight ; breeds on Hypericum prolifiouTii.PARACALOCORIS HEIDEMANNI var. ABLUTUS McAteePlummers Island, Md., July 14, 1915, July 19, 26, 1914, McAtee;Great Falls, Va., July 18, 1926, Knight. 22 PROCEEDINGS OF THE NATIONAL MUSEUM vol. T5PARACALOCORIS MULTISIGNATUS ReuterWashington, D. C, June 7, 1884 (Uhler collection) ; June 22, 23,1905; Rock Creek, D. C, June 29, 1890, Heidemann; Beltsville, Md.,June 14, 1914, June 23, 1918, July 4, 1915, McAtee; breeds onVirginia Creeper. Genus NEUROCOLPUS ReuterNEUROCOLPUS NUBILUS SayCommon, found most often on sumac flowers, but taken also onthose of 2'ilia cmieiicana^ Ceanothus americanus^ Clethra alnifoUa,and Monarda punctoita; June 2 to September 15. P. I.Genus PHYTOCORIS FallenPHYTOCORIS MINUTULUS ReuterHyattsville, Md., August 2, 1907, D. H. demons ; Plummer Island,Md., July 26, 1903, Barber ; July 6, 1906, D. H. demons ; August 27,1922, J. R. Malloch. PHYTOCORIS PURVUS KnightWashington, D. C, June 30, 1926, Knight; Plummer Island, Md.,June 14, 1912, Barber; August 3, 1915, R. C. Shannon; JacksonsIsland, Md., June 23, 1913, Shannon and Barber; Great Falls, Md.,June 18, Barber. PHYTOCORIS ANTENNALIS ReuterThis interesting species is encountered only one or two at a time,but has been collected on fairly numerous occasions ; dates range fromJune 20 to September 20. V. P. I.PHYTOCORIS FENESTRATUS ReuterA striking inhabitant of Virginia pine that has been rather seldomcollected; Washington, D. C, June 3 (Uhler collection); May 16,1902, June 27, 1895, Heidemann; Petworth, D. C, May 21, 1905,D. H. demons; Branchville to Beltsville, Md., June 4, 1914; Cornerof Conduit and Potomac Roads, Md., May 9, 18, 1913, McAtee.PHYTOCORIS FUMATUS ReuterWashington, D. C, June 20, Heidemann; June 22, 1906, F. Knab;May 30, 1891, on walnut, June 6, 1886, June 12, 1888; PlummerIsland, Md., June 30. 1905, Heidemann.PHYTOCORIS CORTICEVIVENS KnightGreat Falls, Md., July 2. 1906, Heidemann.PHYTOCORIS CONSPURCATUS KnightFairly common ; season June 3 to October 12. P. I, If ART. r.', MIRIDAE OF DIST. OF COLUMBIA KNIGHT AND McATEE 23PHYTOCORIS DIFFICILIS Knight i| Beltsville, Md., July 3. 1926, Knight.PHYTOCORIS SULCATUS KnightWashinorton, D. C, July, 1907, William Palmer: July 4, 1886; I July 9, 1926, Au^just 6, 1926, Knil. 2, 1892, pp. 224-226.Twenty species are mentioned, 10 under Uhler manuscript names while4 others are misidentifications. Of tlie Uhler names some are accom-panied by descriptive matter sufficient to validate them. Five of themare identifiable and are accepted in tlie present paper. ABT. 13 MIEIDAE OF DIST. OF COLUMBIA?KNIGHT AND McATEE 25Heidemann, Otto.?Ccmtinued.Heteroptera found on ox-eye daisy (Chrysanthemum leucaathemum), Proc.Ent. Soc. Wash., vol. 4, p. 217, May 1899.Twelve species of Miridae are included in the list, one of them undera manuscript name, Apocreninus robustus Uhler.[Notes on some hemipterous insects.]Proc. Ent. Soc. Wash., vol. 12, 1910, pp. 45-57.Records the rearing of Eurychilopterclla luridida Renter from theDistrict of Columbia; also the first si)ecimen of a Sericoplianes (ed inpart from local material.Notes on the distribution and host plants of some North American Miridae(Hemiptera). Can. Ent., vol. 59, 1927, pp. 34-44.Alepidiella heidemnnni Popping found breeding on Pinus virgimana,Philophorus walshii Uhler breeding on Gleditsia triacanthos, while Crio-coris saliens Renter and Phytocoris hreviusculus Renter are recordedfrom local material.Descriptions of 12 new species of Miridae from the District of Columbiaand vicinity (Hemiptera). Proc. Biol. Soc. Wash., vol. 40, 1927, pp. 9-18.Twelve species and two new varieties are described from our region.Descriptions of 15 new species of Ceralocapsus (Hemiptera, Miridae).Ohio Journ. Sci., vol. 27, 1927, pp. 143-154.Three new species, Ccratocap.^us uniformis, barhatiis, and mcateei aredescribed from local material.Key to the species of Oncerometopus with descriptions of five newspecies (Hemiptera, Miridae).Journ. N. Y. Ent. Soc, 36, No. 2, June 1928 (August), pp. 189-194.O. nitetis new species described in part from local material.McAtee, W. L.Psyllidae wintering on conifers about Washington, D. C, Science, new ser.,vol. 41, p. 940, June 1915.Li/f/us pratensis hibernating on pine.Key to the Nearctic species of Paracalocoris (Heteroptera, Miridae). Ann.Ent. Soc. Amer., vol. 9, 1916, pp. 366-390.Records from our region 5 species, 1 of which is described as new and11 varieties, 10 new.A sketch of the Natural History of the District of Columbia, Bull. Biol.Soc. Wash., 1, 1918, 142 pp., 4 maps.Refers to collecting localities for a few of the rarer Mirids.Notes on two Miridae, Camptobrocliis and Paracalocoris (Heteroptera).Ent. News, vol. 30, 1919, pp. 246-247.Camptobrochis poecilus validated and becomes available for the pre-occupietl name, cunealis Renter, originally described as a variety fromthe District of Columbia material ; notes on C. nettuJosus also.McAtee, W. L., and Mali.och, J, R.Some annectant bugs of the super-family Ciniicoidea (Heteroptera), Bull.Brooklyn Ent. Soc, vol. 19. pp. 69-82, PI. 1, June. 1924.Peritropis salda efarm is Uhler recorded (p. 73).Poppius, B.Ubersicht der Pilopborous arten nebst beschreibung verwandter Gattungen(Hemiptera-Heteroptera). Ann. Soc. Ent. Belgique, vol. 58, 1914, pp.237-254.Pilophorous brunucus, new species, and AlepidieJla hcidciunnni. newgenus, new species, founded on local material. PUophorus crasxtpcs,new species, is recorded in part from District of Columbia, but the typewas from Colorado and proves to be different, while the local si>ecimens . are referable to P. crassipcs Heidemann. ART. 13 MIKIDAE OF DIST. OF COLUMBIA KNIGHT AND McATEE 27Reuter, O. M.Bemerkuri|?en fiber Ncarktische Capsiden nebst beschreibung neuor Arten.Acta Soc. Sci. Feniiicae, vol. 36, No. 2, 1909, pp. 1-86.There are recorded from our territory, 31 species and 5 varieties ofwhich 16 species and 5 varieties besides 2 new genera are described,wholly or in part, from local materiiil. One of the species, Phytocorissubnitidulus, is now regarded as a synonym of P. fumatus. Two otherspecies had names preoccupied and have since been renamed as follows : Camptobrochis nigrita becomes Deracocoris nigritul'us Knight, whileCamptohrochis nitens becomes Deraeocoris nitenatus Knight. The recordfor Camptohrochis ffrandis Uhler refers to Deraeocoris aphidiphagiisKnight. Psa-Uus ciaicali Uhler a jns. name pos.sibly validated here i?preoccupietl.Uhleb, p. R.Observations on some remarkable forms of Capsidae. Proc. Ent. Soc. Wash.,vol. 2, 1891, pp. 11^123.Describes Peritropis saldaefornus from local material, also records thefinding of Ci/Iapus ienuicornis Say by Heidemann.Observations on some remarkable Heteroptera of North America. Trans.]Maryland Acad. Sci., 1892, pp. 179-184.Records Hadrodema pulvcrulenta, new species^L//f/H.s' rubicundusFallen, from Washington.List of Hemiptera-Heteroptera of Las Vegas Hot Springs, New Mexico,collected by Messrs. E. A. Schwarz and Herbert S. Barber. Proc. U. S.Nat. Mils., vol. 27, No. 1360, 1904, pp. 349-364.Describes Dichrooscyttis elegansi in part from Washington, D. C, butthese eastern specimens have been shown to belong to a different species,namely Dichrodci/tus tinctipennis Knight.Van Duzee, E. P.Monograph of the North American species of Orthotylus (Hemiptera).Proc. Calif. Acad. Sci., vol. 6 (ser. 4), 1916, pp. 87-128.Records O. flavorsparsus Sahlberg and chlorionis Say from our regionCatalogue of the Hemiptera of America north of Mexico excepting theAphididae, Coecidae and Aleurodidae. Univ. Calif. Publ., Div. Ent.,Tech. Bui., vol. 2, 1917, pp. 1-902.Records several species of Miridae from the District of Columbia.New species of Hemiptera chielly from California. Proc. Calif. Acad.Sci. (ser. 4), vol. 8, 1918, pp. 271-308.Describes Pilophorus laetvs and P. crassipes, in part from local material,but the name crassipes had previously been published for the same speciesby Heidemann.