Vol. 8, No.1- 2, March - June, 1994 17
The subgenus Atrichopogon (Lophomyidium) with a revision of tile Nearctic species (Diptera: Ceratopogonidae)
WllhsW. Wirth Florida State Collection of Arthropods, and Systematic Entomology Laboratory, USDA, 1304 NW 94th St., Gamesville, Flonda 32606
Abstract Atru:bopngon Kieffer, subgenus Rnstropngnn Remm, IS a junior synonym of the subgenus LophOmyidi!lm Cordero (NEW STATUS, NEW SYNONYMY). Monohelea ocumare Ortiz from Venezuela is transferred to Atrichopogon (Lopho~idium)(NEWCOMBINATION) The Holarcf.ic species Atrichopngnn pnljlda.ctyllls Nielsen is a junior synonym of A. {uBculuB (Coquillett), a widespread and common species previously reported from only the Western Hemisphere. Four Nearchc species are described as NEW SPECIES: A. ;amnbacki from salt and brackish marshes along the Atlantic coast from Nova Scotia to North Carolina; the following freshwater species, A. deyrupi from southern Florida; A. archboldi, from southern Florida, Texas and California, and southward well into the Neotropical Region; and A. borkenti, from western Canada. The larvae ofA. (Lophomyidium) are found on wet wood, soil, and stones in marshy habitats. Adults ofA. fUBculuB have been observed feeding on insect carrion in spider webs.
Introduction Thus a critical comparison of the three species The Northern Hemisphere species ofthe genus A. rostratus, A. polydactylus, and A. fusculus, has Atrichopogon Kieffer with an elongate proboscis never been published. J. A. Downes (in litt.) in- have long been a source ofconfusion. Atlichopugon rostratus (Winnertz 1852), a common and wide spread European species, was for many years the Palaearctic A. polydactylu8, but ofthe Nearctic A. only known species of this group, and was named fusculus, but this opinion was never published. thetype-species ofthesubgenusRostropogonRemm in 1979. In 1951, Nielsen described Atlic1wpogon polydactylus, the second Palaearctic species ofthis group, from Denmark He eompared it with A. rostratus, but did not give actual characters by een oane .r. za zlewslln y et me stu y which itcould bQ distinguishQd; morQOVQr hQ statQd the types during his 1991 visit to Florida, and (p. 63) that "The larva perhaps cannot be distin loaned me short series of the two Palaearctic spe- guished from that of A. rostratus Winnertz, de cies, A. lostmtus and A. polydactylus. He pointed scribed by Lenz ..." ~~~~ha~~st:: ~~;~e;::: :~~e::=~~lYorfu:r~:~: In North America, Coquillett (1901) described Atrichopogon fusculus from fOur northeastern spQrmathecae and the setation ofthe paratergites. states, and Malloch (1915), Thomsen (1937), Wirth Published Neotropical records ofAtrichopogon (1952,1974), andBoesel (1973), among others, gave fusculus and the accumulation ora large number of Ne ro i I im n i figures, notes, anddistribution indicating that this species was widespread over mostofNortb America andranged south to Costa Rica and Brazil. In 1958, Ewen and Saunders described all stages of A. polydactylus from Saskatchewan, but did not com- Lophomyidium uruguayense, new genus and spe pare the species with A. [usculus or A. rostratus. cies, from Uruguay. The excellent description and 18 Insecta Mundi figules indicate cleady that L. at agaayense is a (1951) fm A. pollinivOt as Downes [misidentified as member of the rostratus group of Atrichopogon. A. pavidus (Winnertz)] and by Glukhova (1981) for Lophomyidium Cordero 1929 thus has taxonomic eightspeciesofAtrichopogon, includingA. rostratus priority over Rostropogon Hemm 1979 (NEWSYN- (Winnertz) Glukhova dividedthe species she stud- ONVMV). Ortiz (1952, 1972) descnbedMonohelea led lOtO four groups based on differences lO struc ()cumare from a male from Venezuela. His deserip ture of the female mouthparts. She placed A. tion and figures indicate that ocumare is a species rostratus in her Group III, giving the following of Atl ichopogon (Lophomyidiam)(NE"N COMBI comments. NATION), butlack sufficient detailsfor a compari- "[Group TIT] also has only one species, A son with other speCIes. A taxonomIC reVISIOn of the rostratus (WlOn.), typifIed by an unusually long Neotropicalspecies ofLoph()myidiumwillbe neces proboscis in both female and male. Length of pro sary to establish the specific identities of A. boscis equal to head depth and not inferior in uruguayensis, A. ocamare, and the othel thlee lelative length to PIoboscis of blood-sucking describedspecies ofthissubgenusin SouthAmerica, Culicoides. Allpartsofproboscis elongated, slightly A. [ascatas (Coquillett 1901), A. taeniatus Macfie conical, with practically parallel margins. Man (1939), and A delpontei Cavalieri and Chiossone dibular teeth ofunllsualshape for the entire genus, (19'13). very pOlOted and trIangular. Pubescence oflabrum The purpose of this contribution is to compare resembling thatin group I, butbristlesshorter, and the three nominate northern hemisphere species hypopharynx closer in shape to that of species in critically, and to Ie-examine all available NOIth group II." According to Glukhova, in Atrichopogon American specimens that would fall in the subge- the only piercing parts are the mandibles; the nus A. (Lophomyidium) in a taxonomIC reVISIon of labrum and hypopharynx, deVOId of armature, are the Nearctic species. not piercing parts. In some species the laciniae are Explanation of the taxonomic characters used somewhatelongatedandprovidedwith distalteeth, can be found in the genexal papels on Celatopogo- suggesting that they ale mOle 01 less involved in nidae by Wirth (1952) and Downes and Wirth biting. (1981). Tenninology fOI the larvae and pupae fol- McKeever et al. made comparative studies of lows that of Ewen and Saunders (1958) Measure- four species ofCulicoid€s (1988) and ten species in ments are gIVen lO mICrons unless otherWISe speCI seven genera of the tribe Ceratopogonini (1991) by fied. examination with light and scanning electIon mi- Because of the enlargement of the clypeal re croscopy. Their studies portrayed minute details of gion (Fig. 46) in this group ofspecies, the measure- mouthpart struct.ure of cerat.opogonid midges for ment of length of proboscis and calculation of the the first time They presented SEM photographs proboclslhead ratIo (PIH RatIO) IS made differently comparlOg the mandIbles, laclOlae, labrum, and from that traditionally used in ceratopogonid tax hypopharynx of males and females. I am greatly onomy. In this paper proboscis length is measured indebted to Dr. McKeever for his cooperation in flOm the base oftheclypeus to the tip ofthe labl um- dissecting and photographing several species from epipharynx. Aspecial PIH Ratio is derivedby divid the present study. With his generous permission I ing the distance from t.he dorsal margin of the present his SEM photographs Of the roUOwmg spe- clypeus to the tip ofthe labrum-epipharynx by the cies (Figs. 1 12): Female mandible ofAtrich()pogon diStance from the clypeal margin to the upperhead {usculus (Fig. 2) and its tip enlarged (Fig. 1); same margin as seen in unflattened slide mounts in fOI A.jamnbacki(Figs. 3-4); andA. deVI upi(Figs. 5- anterior view. This modification is made because it 6). For A. jamnbacki, female labrum (Fig. 7) and seems that the elongated proboscis is made up in lacinia (Fig 8); and male mandible (Fig 9), labrum large part by the unusual elongation of the clypeal (Fig. 10), hypopharynx (Fig. 11), and lacinia (Fig. regIOn, rather than the portIOn from the tormae to 12). the tip ofthe labrum epipharynx as in some other The morphology of the Ianae and pupae is not Ceratopogonidae. Boesel (1973) also measured the treated here in detail because it was described and proboscis length flOm the base of the elypeus to the figured in excellent papers by Nielsen (195]) and tip of the proboscis. Ewen and Saunders (1958) under the name Details olthe st.ruct.ure ofthe male and female AtrlChopogon poljidact;)'lus I wiD merely point out mouthparts of Atrichopogon were published by diagnostic characters and give supporting illustra- Goetghebuer(1923a) forA. {uscus (Meigen), by Gad tionsforthe twospecies whose immature stages are Vol. 8, No.1· 2, March· June, 1994 19
known, A. fusculus andA.jamnbacki (Figs. 21-27, to halfofwing and usually extending into analcell. 32-33). Female abdomen without armature ofstout spines Holotypes and allotypes of the new species on distal sternites; two spermathecae (Fig. 17). herein descrihed, unless otherwise specified, are Male genitalia (Figs 19-20) typical of the genus; depOSIted m the NatIOnal Museum of Natural HIS sterOlte 9 WIthout deep caudomedian excavatIOn, tory, Smithsonian Institution, Washington, D.C. with numerous scattered setae. (abbreviated USNM). Paratypes, when available, will be deposited in the Flolida State Collection of Note. I am indebted to Ryszald Szadziewski (in Arthropods (FSCA), Gainesville; California Acad- litt.) for calling to my attention a useful character emy ofSciences (CASC), San Francisco; Canadian on the thorax of adult Atrichopogon. ThIS genus National Collection (CNCI), Ottawa; British Mu- differs from Forcipomyia, the other genus ofForci seum (NaturalHIstory)(BMNH), LOndon; Museum pomyiinae, by itsweII-developedparatergite, which National d'Histoire Naturelle (MNHN) in Paris; forms a distinct lens shaped sclelite below the and Museum de La Plata (MLPA), Argentina. lateral margin of the scutum. In Atrichopogon the palatergite always bears midway near its ventral margin a long, bristle·like seta In the group of Subgenus Lophomyidium Cordero speCIes, mamly NearctIc, that I refer to as the fusculus Group, with 4 strong marginal bristles on Lophomyidium Cordero, 1929: 94. Type-species, the scutellum, the paratergite is otherwise com Lophomyi<1Jum uruguayense Cordero, by origmal pletely bare of setae except in one Palaealctic designation. species, A. rostratus, in which the paratergite also Atrichopogon, subgenus Rostropogon Remm, 1979: 07. bears 1-6 additional sman setae. A second group of Type-species, Ceratopogon rostmtus Winnertz, by species with 6 marginal scutellar bristles, that I original designation. NEW gYNOWiMY. refer to as the archboldi group, mainly Neotropical in distribution, is charactelized by the plesence of Note on Synonymy. Ingram and Macfie (1931: a vestiture of 5-20 scattered small setae on the 172) stated' "Lophomyidium is almost certainly paratergite in addition to the strong bristle. Atriclwpogon. Cordero's very detailed description and numerous illustrations of the only speeies, L. Immature Stages. The larvae of LOphomy£d£um uruguayense, including a figure ofthe hypopygium species are characterized by the absenee of the in ventral view, leave little doubt ofthis, for ifR2 is transverse, elliptical, well-tracheatedmembranous not clearly shown in t.he figure of the wing, its areason the dolsum ofthe mesothOIax and abdomi- pOSItIon IS suggested, and the anomalous features, nal se ments II r unc ion. ns ea , arvae 0 IS su genus ave e shaped empodium, may be explained as due to mediodorsal and laterodorsal processes elongated, misintelpletationofappealancesseenin a mounted thin-walled, and well provided with tracheae, thus specimen" likely functioning as tracheal gills (Figs. 21-14, 32- 33). The pupae (Fig 25) of LophomyidilLm differ mm) WIt long, usua y owncurve pro OSCIS. yes from other Atrichopogon pupae in the rather tubu- bare. Palpus (Fig. 14) 5 segmented, long and slen lar shape of the respIratory horn and the presence der, third segment with deep sensory pit located of many (40 90) spiraeular openings in a much convoluted, U-shaped row looping around the dis tal end and I eaching to neal base ofthe tube on the curvmg s g t y ac war apica y. ema e man posteriorside (Figs. 26, 27). Abdominalsegments II dible (Figs. 1 6, 15, 28, 38) with distinet but small to VIII have thm-walled, slender, fmgerlike, poste teeth; fulcrum located well proximad ofmidlength riorly bent tracheal gills arising just anterior and of mandible (Figs. 2, 6). Tip of fore tibia with a dorsal to the well-developed, spinulose, lateralpro prominent project.ing brush on anterior margin cesses. Body frequently WIth whItIsh opaque subcutane ous fat bodies. Wing of males usu~lly without Distribution. Holarctic, Neofropical macrotrichia on membrane, in fema es (Fig. 16) macrotrichiamoderately numerouson distalfourth Included Species. 20 Insecta Mundi
Ulchboldi JvVirth, new species. U.S.A. (FIOlida). 4(1). Palpal segments 1-3 yellow, 4-5 blOwn (Fig. 35), borkenti Wirth, new species Canada (British Co- tibiae with pale long extensor bristles; female lumbla). "ing less hairy, maerotriehia smaller, 10 15 in delpontei Cavalieri & Chiossone, 1973' 121. Argen- anal cell, membrane whitish; spermathecae tma. (Fig. 41) equal, oval, large, 150 by 103 mierons . deyrupi n. sp. deyrupi Wirth, new species. U.s.A. (Florida) Palpus @ntir@ly brown; tibiae with strong brown ruseulus (Coguillett), 1901: 603 (Ceratopogon). extensor bristles; female wing hairier, macro- U.s.A. (New Jersey). trlChla larger, 20-30 III anal cell, membrane jamnbacki Wirth, new species II SA (New York) grayish; spermathecae (Fig 45) unequal, small polydactylus NIelsen, 1951: 2'/. Denmark. Syn the larger 100 by 62 mlCrons, OVOId taperlllg to onym of{uscuius (Coquillett). short neck archboldi n sp putredinus Kieffer, 1922: 233. Germany. Synonym of lostwtns (\VinneItz). Note: The Palaearctic species, A. rostratus rostratus (Winnertz), 1852: 31 (Ceratopogon) Ger- (Winnertz), keys out with A. ruseulus and A. many. jamnbacki but differs from both in its larger sper taeniatlls MacCie, 1939' 186 Brazil mathecae Qengths 185 and 150microns) andshorter uruguayensts (Cordero), 1929: 95 (Lophomytdmm). proboscis (p1H Ratio 1. 71). Uruguay.
Key to the Nearctic Species of Atrichopogon fusculus (Coquillett) Atrichopogon subgenus Lophomyidium (Figs. 1-2, 13-23, 25-26, 33)
1. Scutellum with 4 strong marginal bristles; female Cemtopogon fusculus Coquillett, 1901. 605 (male, fe- mandibular teeth perpendicular to axis ofman- male; D.C., N.J., N.H., Me.); Kieffer, 1906: 53 (cata diMe (Figs. 1, 15) 2 log reference), Malloch, 1915. 305 (all stages, Ill., Scutellum with 6-8 moderate to strong marginal figs.). bristles, female mandib ular teeth slanted (ab- AtrichQpogon fuseulus (Goquillett), Ingram & Macfie, lique to mandibular axis, figs. 5, 38) or perpen- 1922: 244 (combination); Thomsen, 1937: 65 (notes dicular 3 on immature stages); Johannsen, 1943: 777 (in list; N. Amer. distr.); Wirth, 1952: 118 (male, female; 2. Proximal antennal segments of female monili Calif.; disk; figs.); Wirth, 1956: 242 (Brazil, Costa form; spermathecae (Fig. 34) subequal, elon- Rica; in flowers of Hevea); Wirth & Stone, 1956: 429 gate oval to ovoid ....'ith short slender neeks; (Calif.; in key to species); Snow, et aI., 1957: 13; male genitalia (Fig. 31) short and broad, Lewis, 1959: 13 (Conn.; seasonal disk); Cole, 1969: gonocoxite greatly swollen, 1.5 times longer 91 (notes and dlstr.); Boesel, 1973: 209 (male, fe than broad jamnbaeki n. sp. male redescr; distr; fig male, female wings); Proximal antennaI segments offemale 0.7 as long Wilkenmg et aI., 1985: 514 (Fla. records). as broad (Fig. 13); spermathecae (Fig. 17) un Atrichopogon polydactyills Nielsen, 1951' 27 (all stages; equal, short, oval, with short, stouter necks; Denmark; fIgs.); Ewen & Saunders, 1958: 715 (all male genitalia (Fig 20) more elongate, stages' figs' Canada (Sask ). Remm 1988' 87 (in gonocoxlte 3 times longer than broad .. Palaearctic catalog; PalaearctIc distr.). NEW S fN ...... , "''''.... fusculus (Coquilletf) ONYMY. Atrichopogon rostratus (Winnertz) of authors, misident., 3. Distal antennal segments (Fig. 37) short. seg- in part, Coetghebuer, 1920. 31 (Belgium); Kieffer, ment 11 about 3 times length of 10 in female, 1925: 55 (France, northern Europe); Edwards, 1926: antennal ratio 2.20; mandibular teeth perpen- 400 (Cleat Britain), Coetghebuer & Lenz, 1934. 22 dicular to slightly oblique; spermathecae (Fig. (northern European records); Tokunaga, 1940: 266 40) subequal, elongate-ovoid with long tapering (Japan), Remm, 1961. 926 (USSR, fig. head). necks borkenti n. sp. Kempiafusca(Winnertz), misident, in part; Goetghebuer, Distal antennal segments elongate, 11 about 3.5 1923b: 176 (larv a only; fig., see note in Nielsen 1951. times length of 10 in female (Figs. 13, 30) 63); Goetghebuer & Lenz, 1934: 110 Garva). antennal ratio 2.35, mandibular teeth mark edly oblique (Fig. 38); spermathecae without Description:Female (from Alexandria, Va) Wing long tapering necks 4 length 1.68 mm; breadth O. '72 mm; costal ratlO O. 79. Vol. 8, No.1- 2, March - June, 1994 21
Head. Uniformly brownish. Antenna (Fig. 13) short, stout, reflexed laterad; basal arch to 0.44 with proximal flagellar segments 0.7 as long as length of aedeagus, posterolateral shoulders broad; flagellar segments lengths 54-36-32-32-32· rounded, well developed; posterior margin ofmain 32-34-36-115-108-122-118-165 microns; antennaI body with a narrow sclerotization, transverse me- ratIO 2.20. Palpus (FIg. 14) segments lengths 54-63 dlaIly, bent laterocephalad m a dIstmct angle (thIS 80 54 69 microns; third segment slightly swollen sclerotization sometimes concave in midportion of on distalhalf, sensorypit relatively shallow; palpal median andlateral sections, the main body appear- ratio 2.45. Proboscis relatively short, length 575 ing bilobed), distomedian process short, in ventral microns; PIH Ratio 2 03 Mandible(Figs 1,15)with view with caplike flaring tip, a pair of sclerotized 20 perpendicular teeth, the proximal teeth only lines extending obliquely laterocephalad from lat slightly small@r. @ral margins to basal arch. Thorax: Dull to subshining dark brown, hu meral areasoftenpaler; scutumwith uniform short, Immature Stages. Lar va (Fig. 21, from Downes & semi-appressed, pale, hairlike setae: paratergite Wirth 1981): Description from Ewen & Saunders with 1long bristle-like seta. Scutellum dull yellow (1958). "Length about 4.9 mm. Color orange-brown, ish, with four long brown marginal bristles and head dark Head' Ey@ [Fig. 22] s@t high, rais@d many short, fme, haIrlIke setae. Legs yellowIsh, above surlace; allsetae sImple, seta 7 short, seta 10 including coxae, with short, fine yellowish setae; represented by tv/o close set, slender bristles; an tibiae with longer, pale extensor setae. Hind leg tennal socle shorter than width at base. Body with lengths from femur to T5, 780-720-420-158- segments. Seta a and b on prothorax [Fig. 23] to 108-72-72 microns: tarsal ratio 2.64. Wing (Fig. 16) eighth abdominal; seta con mesotborax to seventh with pale grayish membrane with coarse abdominal; setae d, e, and I on prothorax and microtrichia; macrotrichia num@rous on distal abdominal s@gm@nts I to VII, about two thirds as fourtho£wmg, 24 in analcell; anteriorveins yellow long as segment, one of the three lacking on meso ish to pale brownish, second radial cell 3.0 times andmeta thoraxandeighth abdominal; mediodorsal length offirst. Halter pale. andlaterodorsalprocesses extended intolong, slen- Abdomen: Pale brown, darker on sides; terga der, finger-like gills on mesothorax to eIghth ab with sparse, short, fine, hairlike setae Genital dominal, small on prothorax; dorsoanal proc@ss sclerotIzatIOn mconspICUOUS, as m FIg. 18. Sper very small on prothorax, lackmg on remaining mathecae (Fig. 17) short oval to ovoid with short segments; lateral process well developed on meta slender necks; unequal, 101 by 72 and 87 by 58 thorax to eighth abdominal, smaller on mesotho microns. rax, paired pigmentedseierites on laterodorsalsur- face of pmthorax Protboracic pseudopod deeply Male. Wing length 1.10 mm; breadth 0.52 mm; cleft, each lobe WIth a postenorrow of eighthooklets costal ratio 0.71. andan anteriorrow offour; analpseudopod with an Similar tofemale with usualsexualdifferences; anterior row ofsix pairs ofhooklets and a posterior darkerthanfemale, legsandscutellum often blOwn- lOW offive pairs." ish; wing without macrotrichia. Antenna with To the above diagnosis the following notes may brownisb plume; segments 11-15 with lengths 54- be added' Integument of head lacking nodules or 83-191-158-172 microns Hind leg with lengths ridges of irregular sculpture found in most from femur to 1'5, 740-700-475-144-108-72-72 mI AtncIWpogon larvae. A pair of short, stout, blunt, crons. brownish spurspresent laterally near hind margin Genitalia (Fig. 20): Ninth tergite 1. 5 times ofhead. Body with irregularpatches ofdark brown longer than broad, posterior margin evenly round- integumental pigment, more extensive on anterior ed, with long, pale-brown bristles; ninth sternite segments; integumentwithdensevestitureofshort, WIth numerous, mconspiCUOUS, fme, pale setae, stout, sharp-pomted spmules, these longer and caudomedian excavation scarcely evident. denser on sides ofbody and at bases oflaterodorsal Gonocoxite moderately slender, 2.6 times longer processes. Laterodorsal process on prothorax a low than broad, arcuate, bowed laterad, basal apodeme spiculose moundbearing a shmt stout seta (b). Last small, rounded; gonostylus 0.77 as long as abdominal segment (Fig. 33) with a rectangular gonocoxite, stout and nearly straight proximad, pigmented plate bearmg two pairs of lOng s@tae, tapering to slightly bent, slender tip. Aedeagus posterolateral pair strong. (Fig. 19) 0.77 as long as basal breadth, basal arms 22 Insecta Mundi
Pupa (Fig. 25, 110m Nielsen 1951): Descliption Specimens Examined. Eurasia. BELGIUM. Sl. from Ewen & Saunders (1958) "Length about 2 2 Jean in Eremo. 14.viii.1938. M. Goetghebuer. 1 male mm. Exuviaepaleyellowish. Frontalandeplcramal (del. rostratus by Goetghebuer)(USNM). ESTONIA. processes small, setae simple. Thoracic process 3 Lelle. l1.vi.1960. H. Remm. 1 male, 1 female (USNM). reducedto an mconspicuous node, othersstyliform, ENGLAND. Cheshire, Skirwith, vi.192'i', H. Britten, covered with small spinules. Lateral processes of female (USNM). JAPAN: Honshu, Kyoto Pref., Midoro Pond, vi. 191515, P. H. Arnaud, Jr., light trap, 3 males, 1 abdominal segments I to V slender, unbranched, female (USNM); Kyoto, 8.v.19153, P. W. Oman, 2 females andcoveleddistaHy with smallspinules, mediodOl (USNM). POLAND: Babia Gora, Zawoja-Czatoia, sal processes short: mediodorsal and lateral setae 3...,ii.1989, R. Szadziewski, 1 female. Bryzyno at short, slender, on abdommal segments I to V. On Zarnowiec Lake, 8.vii.1980, RS, 1 female. Kunicha near the lateral surfaces, abdominal segments II to VIII Sztabin, 5-24 viii 1985, J Krzywinski, at Api aceae flower, have thm-walled, fmgerlike processes which prob ably have a respiratory function. Respiratory horn i . 26 c lindrical with a U-sha ed row of s i- , w i even u- Luss, 21.vi.1960, J. A.Downes, 1 female (CNCI). TUR ac~oss d~rsal t~ tu~e ally bends the side of to KEY' Celik nolu, Adiyaman, 900 m, 21 vi 1985, H contmue prOXImally on t e postenor su ace. Schacht, 1 male, 2 females (Borkent colI. CDI273). Canada (all from CNCI Collection except as noted). Variation. Samplesfrom Californiaandsomeother ALBERTA: Brooks, 3.vii.1955, J. A. Downes, 1 female. ~ estern statesare malkedly darker inCOIOl and the Kananaskis Envir. Sci. Ctr., 24.vii.19'i'3, JAD, 6 males, male aedeagus usually has the posterior scJerot.iza. 14 females. Waterton Lakes Nat. Park, 7-12.vii.1980, H. tion ofthe main body more distmctly bilobed. How J. Teskey, 11 females. BRITISH COLUMBIA. Anahim ever, no signulCant differences in mQasurQmQnts Lake, 10 km SW, 3-5.vii.1992, A. Borkent, sweeping couW be found m these samples. flowers of Gecuta, 1 female, 47 km VI, 14.vii.1992, AB, 2 females (Borkent colI.). Atlin, 660 m, vi. 1955, H. Huckel, 3 males, 3 females. Lac be Jeune, 27.vi.1973, IIJT, 1 Types. Cerawpogon fusculus Coquillett: "Three female. McQueen Lake, 10 km N Kamloops, 18.vi.1973, males and four females, Washington, District of HJT, 1 female. Salmon Arm, 3 km E, 4.v.1992, AB, Columbia (May 12, FC Pratt); Riverton, NQW sweeping flowers of Ace,., 2 females (Borkent coli.). Jersey (AprIl 30, C. W. Johnson); Mount Washing. MANITOBA: Churchill, 26.vii.1951, JAD, 4 males, 3 ton, New Hampshire (Mrs. A. T. SIo880n); and females; 15 vii 7 viii. 1953, J.W, 3 males, 2 females; Waldboro, Maine (J. H. Lovell). Cat. No. 5476, U.S.N.M." Lectohpemale (Pinned), Rivelton, N.J., oe mg,' femie; :2 .VI:r 4~.E.hewe ,7 te males ChurchIll, Warkwortb Creek, B-13 viii 1953, ,lAD, 2 males, 3 females; Whiteshell Provo Park, Brereton Lake, 24 IX 1967 S Smith about spIder web, 2 females NEW BRUNSWICK: Chamcook, 30.vi.1966, GES, 4 females; Birch Cove, Chamcook, 14 vii 1957, ex flowers Atriclwpogon polydactylus Nielsen: Holotype of Eupatorium perfoliatum, GES, 4 females. Kouchi female (rearing no LV); allotype male (rearing bouguac Nat. Park. 2.vii.l977, J. R. Vockeroth, 2 males, LIV; head, right wing, middlQ and hind tarsi, as 2 females; vii. 1977, 26.vii.1978 I. M. Smith 6 males, 3 well as abdomen mounted as slide preparations). females, 8-14.vii.l978, JAD, 13 males, 4 females. St. Paratypes: I female. Type locality: Denmark, Andrews, 9.viii.1957 GES, 1 female. NEWFOUND LAND. St. Johns A~I. Exp. Sta., 9.viii.1967, J. F. Jutland, HimmerlandProv.,RoldSkov Forest, 1947 McAlpine, 3 females. NOVA SCOTIA: Cape Breton 48. A. Nielsen. ThlOugh the courtesy of Leif Highlands Nat. Park, South IIaIhouI, 19.vi.l983, JRV, Lyneborg ofthe Zoologisk Museum in Copenhagen 2 females. Cheticamp, 6.vi.1984, B. E. Cooper, 2 males, and Ryszard SzadzIewskI of the Omverslty of 16 females. Kentville, 6.viii.1958, JRV, 1 female. Gdansk, I was ablQ to Qxamine theholotype, mounted Lawreneetown, Halifax Co., 19 20.vii.1967, D. M. Wood, on two slides: Slide I, female; andslide 2, larval and 1 male, 4 females. Smiths Cove, 6.viii.1925, A. Gibson, pupal exuviae of the holotype female. 2 fe~ales. ONTARIO: Algonquin Park, 25....i.1966, 8.
Distribution Widespread in northern Eurasia, ema e. lac ake, N. Burgess Twp., 29.vii.1972, North America, and south in West Indies, Central JAD, on spider web, 2 females; lOyii.1977, JAD, 1 malo, and South America to Brazil and Bolivia. 10 females. Carleton Place, 27.vii.1959, C. H. Mann, 1 Vol. 8, No.1· 2, March· June, 1994 23
female. Constance Bay, Carleton Co., 9.vi.1977, Ji'.D, 1 lingtonia bog, 2100 m, 1 female. Tulare Co., California male, 4 females. Erieau, 5 km E, 1-25.viii.1984, AB, 1 Hot Springs, Deer Creek Bridge, 6.viii.1947, WWW, 1 male (CNC eoll.). Kemptville, 5.vi.1960, W. 'N. WiFth, male, 3 females; Kaweah River, 8 km E Lemon COve, light trap, 1 female (USNM). Marmora, 30.v.1952, JRV, 4.vii.1947, WWW, 1 male, 1 female; Poso Creek, 1 female; 27 "iii.1952, JFM, ex Polyporus sp., 3 fomales. 6.viii.1947, WNW, under bridge, 1 male, 2 females; Maynooth, 13.viii.1965, McAlpine & Martin, ex red Springville, Middle Fork Tule River, 1O.vii.1947, WWW, pine, 1 female Mer BIen, Ottawa, 7 "i 1923, CH 2 males, 3 females. FLORIDA: Alaehua Co., Gainesville, Curran, 1 female; 15 vi 1966, DD Mnnroe, 2 females Lake Alice, "i 1969, FS Blanton, 1 male, 2 pupae; Orllla, IB.Vll.1923, C. H. Curran, 1 male. Ottawa, 12 GamesvIlle, Chanhlly Acres, v-vlll.1967, FSB, hght trap, 29.vi.1954 JAD, 1 female; 28.vii 1954, E. C. Becker, ex 4 males, 8 females (ESCA); Gainesville, Oak Crest, iv- goldenrod leaf mines, 1 female; 12.vh.1966, S. Smith, 1 v.19B5, WWW, Uv hghttrap, I male, 3 females. Gllchrlst female. Ottawa, Mer Bleue, 23.vi.1975, W. L. Grogan, 1 Co, IS 1960, GR Hicks, light trap, 1 female (FSCA) male (USNM). Ottawa, Rideau River, 29.v.1960, WWW, Liberty Co., Torreya St. Park, lv.1952, O. Peck, 3 fe light trap, 1 female (USNM). Pt. Pelee Nat. Park, males (CNC); 20.v.1966, H. V. Weems, 1 male (ESCA) 22.\'ii.1925, G. S. 'Nalley, 1 female, 2'i'.\'i-l l.\'ii. 1984, Orange Co., Maitland, Lake Hope, 27.iv.1985, WWW, AB, 1 male, 1 female. Sandbank, Prince Edward Co., UY light trap, 4 females. Pasco Co., Elfers, 19.iv.1952 8.vii.1977, JAD, 2 males, 5 females. Simcoe, 13.vi.1938, J. R. Vockeroth, 1 female (CNCI). Pinellas Co., Tarpon GES, 1 female. QUEBEC. Abbotsford, IhU93'i'. GES, Springs, 18.i\'.1952, JRY, 1 female (CNCl). ILLINOIS; 1female. Buckingham, 2l.x.1953, JFM, 1female. Dunbar Dubois, 23.v.1917, J. R. Malloch, 2 females (Illinois Lake, St. Mauricie Prov. Park, 7-8.viii.1984, AB, 9 Natmal History Suney, Urbana). Mason Co., Havana, males, 6 females. Gatineau Park, 22.vi.1966, JAD, on Chautauqua Park, 29.iv.1914, JRM, 1 female (INHS). spider 'Neb, 1 fomale. Hull, 1O.viii.1968, ? collector, Piatt Co., Monticello, Sangamon Ri\'er, 28.•i.1914, JRM, malaise trap, 2 females. Knowlton, 25.vii.1929, L. J. 3 females (lNHS). St. Clair Co., Centreville,10.viii.1914, Milne, 1 wmale Lac LaBelle, Riviere, Laurentide Provo JRM, 1 female (INHS). KANSAS; Douglas Co., Ufti.. Park, 8.viii.1984, AB, 33 males, 68 females. LacLaPeche, Kansas BioI. Sta., 26.vii.1966, W. R. Atchley, at light, 2 18 vii 1954, JA D, 1 male Lac PhiIIipe, 5 "iii 1955, JRV, males. LOUISIAW.: Eo Baton Rouge Parish, Amite 1 female. New Richmond, 6.viii. 1938, J. E. H. Martin, River, 16.v.1947, WWW, 1 female; Baton Rouge, S fumales Norway Bay, 19 VJJJ 19:38, DE:S, 2 females 15 v 1947, WWW.atlights.lmale.5females.MAINE: Old Chelsea, 20-26.ix, 9.x.1955, JRV. 2 males, 2 females; Penobscot Co., Old Town, Lake Pushaw, l.viii.196B, 20.lx.1956, JFM, 1 female. Rowanton Depot, 28 WWW, hght trap, 2 females. MARYLAND: Garrett Co., 30 vii] 954, JAD, I male, 2 females Rupert House, Cranesville Swamp, 6" 1960, WWW, reared ex sphag 31.Vll.1940, D. P. Gray, 2 females; E. J. LeRoux, 4 num, I female. Montgomery Co., Colesvllle, 15.vi,1977, females. Summit King Mtn , 350 m, viii ]965, ? coHee. WWW, light trap, I female; Forest Glen, 20 viii 1966, tor, malaise trap, 1 female. SASKATCHEWAN: Saska· vlll.1972, WWW, hghttrap, I male, 4 females; Plummers toon, Beaver Creek, 28.viii.1955, WWW, 1 female Id., 2.vii.1915, RC Shannon, 2 males Prince Georges (USNM). YUKON TERR.. Alaska Hwy km 1688, Christ Co., Patuxent Nat. Wildlife Res. Ctr., 17-23.Vll. 1919, mas Creek, 11.\'i.19'i'9, JAB, 1 male. l.viii.19'i'9, WWW, malaise trap, 1 male, 2 females U.S.A. (all in collection of USNM unless otherwise Wicomico Co., Wango Beach Island, 18-24.v.1982, W. L. noted). ALASKA. Glacier Bay, Muir Inlet, 14.\'i.1965, D. Grogan, Jr., malaise trap, 1 female (Grogan). MASSA- M. DeLong, 1 female. Palmer, 5.ix.1963, K. M. CHUSETTS: Middlesex Co., Bedford, 21.vii.1961, WWW, Sommermaft, jeep trap, 2 females. Summer Shades swept in swamp, 4 males, 10 females. MICHIGAN: Campground, George Parks Hwy, 12.vii.1978, P. H. Cheboygan Co., Douglas Lake, 8-18.viii.1959, R. W. l.rnaud, Jr., 1 male, 3 females (CASC). ALABAMA: Williams, emergence trap, Reese's Bog, 1 male. MISSIS- DeKalb Co., Collinsville, Lookout Mtn., 1.vii.19B8, SIPPI: Jackson Co., Horn Island, 20.iv.1965, E. A. Blanton & Jones, light trap, 4 females (FSCA). Lauder Richmond, 1 female, I) males. MONTANA. Big Timber, dale Co., Florence, 16.viii.1968, G. E. Smith, 2 females. 14.vii.1917, H. G. Dyar, 1 male, 1 female. NEVADA: Mobile Co., Dog River, vi. 196B, Blanton & Cannon, light Reno, 31. ...iii.1915, HOD, 1 male. Steamboat, 13.•. 1915, trap, 5 males, 14 females (FSCA); Theodore, Alligator HGD, 3 males, 3 females. NEW JERSEY: Middlesex Co., (:reek, 7 vi 1968, Blanton & Cannon, 1 female (FSCA) NeVi Brunswick, 12.vii.1958, W'l1W, lake margin, 2 ARKANSAS: Drew Co., Monticello A. & M., 22.v.1969, females. NEW MEXICO: Tucumcari, 15.vi.1964, W. R. P. E. Grlssom, 0 V hght trap, I female. CALIFORNIA: Atchley, 1 male, 12 female. NEW YORK: Monroe Co., Humboldt Co, Mad River Beach, 19 viii 1948, WW Braddock Bay, 12,"i.1963, WWW, near marsh, 2 males, Wlrth, swampy pond, I male, 2 females. Monterey Co., 2 females. NORTH CAROLINA: Macon Co., Highlands, Paraiso Hot Springs, ]3 km S Soledad, 31 viii 1975, P vii 1965, PM Marsh, malaise trap, 1 female. Transyl H. Arnaud, Jr., 6 females (CASC). San LUiS Oblspo Co., vama Co., Lake Toxaway, 9-20.vll.1989, WWW, UV light Alamos Creek, 22 vi ]948, WWW, ] male; Black Lake trap, 1 male, 2 females TEXA.S· Aransas Co, A.ransas Canyon, 22.vili.1948, WWW, swept from trees at lake Nat. Wlldhfe Refuge, 20.v.1972, WWW, 1 female. UTAH: margin, 11 males, 3 females Siskiyou Co, S Fork Cacbe Co, Hyrum, 28 vi 1974, WL Grogan, Jr. 3 Sacramento River, 19.vii.1948, WWW, swept from Dar- males, 3 females. Emery Co., Huntington, Huntington 24 Insecta Mundi
Ri~eI, 9.~i.1974, '1/LO, 1 female. Wasatch Co., Kamas, 111-122-180microns, antennalratia 1. 95, proximal Beaver Creek, 22.vii.1958, B. V. Peterson, 3 females flagellar segments moniliform, as broad as long. (CNCI). VIRGINL.\: Alexandria, Dyke Marsh, 11.vi.1952, Palpus (Fig. 29) segments lengths 3-62-118-54-62 WWW, 2 males, 8 females. Fairfax Co., Falls Church, microns; third segment slightly swollen on distal ll.vi.1952, WVtfW, stl'eam mapgin, 1 female; 18.viii.1958, WWW, light trap, 1 male, 1 female. WEST VIRGINIA: half, palpal ratio 3.30. Proboscis relatively short, Morgan Co , Largent, 3 vii. 1977, VvWW, malaise trap, 1 length 565 microns; Pili Ratio 2. 61. Mandible (Fig. female WISCONSIN' Shawano Co, N shore Shawano 28) with 26 perpendicular teeth, teeth progres- Lake, VI. 1968, Blanton & Habeck, hglit trap, 1 female sively smaller proximad. (FSCA) WYOMING' Old Fait.hful, Yellowstone Na- Thorax· Pale brown, scutum darker; scut.el- tiona) Park, 123.viii.l927, J. M. AldrIch, 2 males, 2 lum paler, WIth four long brown margmal bnstles females. Teton Co.. Grand Teton Nat. Park, Two Oceans plus numerous fine hairlike setae; paratergite with Lake, 19.VIi,1980, J. H. Epler, 1 female. one unusually strong bristle-like seta. Legs stIamineous, with fine palesetae, arew long blown- DISCUSSion. In the northern Pafuearctlc RegIOn ish extensor bristles on hind tibia. Hind Ie with eng s rom ernul' 0 , as A. rostratus (Winnertz)(see Specimens Exam- 86 microns; tarsal ratio 2 50 Wing membrane pale ined). Accm ding to Ryszm d Szadziewski (inlitt.)A. graYIsh, antenorvems pale yellOWIsh; WIth coarse rostratu8 occurs in southern Europe and Nortb macrotrichiamoderatelynumerouson distalfourth Mnca, while A. fUsculus has a more northern of wing, 10-15 in anal cell. Halter pale. distribution. I have examined the following speci Abdomen: Pale brown, with irregular seg- mens ofA. rostratus: MACEDONIA: Lake Ochrid, mental brownish bandsdistallyon tergites; subcuta- 4 7.vi.1955, R. L. Goe, swept from \!egetation by neous pIgmented bodies promment; WIth moder lake, 1 male, 1 female (in USNM by exchange with ately long, fine, pale brown setae, more numerous onpleura. Spermathecae(Fig. 34) brownish, slightly ovoid with shOlt tapel to short slendel necks; subequal, each 144 by 93 microns. m, Bahnstat, Soganli, 5.vii.1985, H. Schacht, 2 Male Allotype. Wing wngth 1.52 mm; breadth males, 5 females (Borkent col!.). 0.47 mm; costal ratio 0.68. In soutbern Soutb America Atrichopogon Similal to female with usualsexualdiffelences. {USculus can be confusedWIth A. iklponte~ Cavalien Bodydarkerbrown; legspalebrownish. Wing nearly & Chiossone which also has four scutellar bristles, bare, only a few macrotricbia near wing tip An- but the latter differs in its larger size (wing length tenna witb dark brown plume; segments 11-15 1. 77 mm), longel pIOboscis (pllI Ratio 2.80) and lengths 54-72-180-144-191. Hmd leg WIth lengths hairier wing (about 40 macrotrichia in anal cell) from femur to T5, 720630318 144 1228686 mi Malloch (1915a) recorded Atrichopogon {USculus crons; tarsal ratio 2.20. ~?~ Illinois a~d described the immature stages. Genitalia (Fi&. 31): Globose, slightly broader Isigures oft e male antenna, palpus, and geni than long; ninth tergum 252 microns long by 273 talia, and female wing agree with A. fusculus as microns wide, nearly circular in prOfile with tpm- described here, but his figures of the female an- cated base. Gonocoxite much swollen, 151 microns tenna and larva do not, and agree more with A. long by 97 microns wide, inner margin with rela ~~~~ri (Coquillett) as described by Thomsen ti\!ely dense fine hairlike setae; gonostvlus lela- tively slender, slightly curved to slender tip, 162 microns long Aedeagus diagnostic, relativelylonger and narrower than in related species, caudolateral Attichopogon jamnbacltaxonomy of North American biting stouter, curved, more closely appressed to body mIdges. than in A. lusculus, with much reduced spinulose vestiture. Lastabdommalsegmentwith dorsalplate Discussion. Atrichopogon jamnbacki can readily replaced by small inconspicuous pair ofpigmented be distinguishedby the globose male genitalia with bars; setae corresponding to posterolateral setae of horn-like distomedian process on the aedeagus dorsal plate replaced by pair ofblack conical papil The female resembles A. fusculus in having four lae, similar to those on prothorax but more elon- scutellar bristles and perpendicular mandibular gate. teeth, but the prOXImal antennal segments are not Pupa: One pharate male pupa available; so compressedandthe spermatheeaeare larger and chaetotaxy poorly visible in the slide mount, but tapering to slender necks. similar to that ofA. lascalas. Length about 8 lInn. Present records indicate that this species is con- Respiratory horn (Fig 27) much shorter, broader fined to salt and brackish marshes along the Atlan- than in A. fusculus, 2. 7 times longer than maXI tIc coast of the Dmted States and Canada. mum breadth, convohlted in shape with about 90 spiracular openmgs arranged m Irregular serpen tine line around margin and on both upper and Atrichopogon borkenti VVirth, new species lower surfaces. (Figs. 36-37, 39-40)
Description:FemaJeHoJotype Winglength I 80 mm, breadth 0.76 mm; costal ratio 0.72. Head: Uniformly dark brown including an Types. Holotype male, allotype female, North Sea, ~i~ fla~ellar Long Island, Suffolk Co., New Yurt, vi. 1956, H. A. tenna and palpus. Antenna 37) se;- ments lengtlu.43-29-29-29-2 -2 -29-29-~-94-1O - Jamn a k r r fr m I m r h P r .lIla es, ema es, arvae, pupa rom segments markedly transverse, with prominent, except as nO::d): U.S.A. DELAWARE: S~SS€lX Co., short, sto'1t, sensilla cha€ltiCa. Palpus (Fig. 36) segmemts lengths 43-90-147-65-79 microns; third segment slightly swollen on distal half, paIpal ratio light trap, 1 female; Rehoboth, l.ix.1977, WWW, 4.0. Proboscis elon~ated len~th 617 micron~ PIH malaise trap, 1 males, 1 female MARYLAND- ratio 2.56. Mandibl with 25 iightly oblique eeth, teetb progressively smaller and more perpendlcu- c~tee, .lIla ema es; 1~vB.l;F op, es; ..17 lar proximad. mosquito trap, 1 male. Somerset Co., Irish Grove Thorax: Shining dark brow n including scutel Wildlife Sanctuary, l1.vi.1973, P. G. Bystrak, light lum. Scutellum with six stron: black marginal trap in fallow field near brackish marsh, 20 males, bristles plus numerous fine seta~ paratergite with 19 females (Grogan coIl.). Talbot Co., Wittman, one strong bristle-like seta plus scattered small 16.vlll.1974, W. E. Stemer, at light, 5 males, 3 setae. Legs brown, with fine brown setae, hindtibia females (Grogan). NEW JERSEY: Atlantic Co., with small extensor bristles. Hind leg 'l/ith lengths Motts Creek, 21.v.1974, C. W. Sabrosky, 1 male. from femur to T5, 755-720-430-165·122-72-87 mi- NEVI YORK. Samedataastypes, 2 males, 1female, crons, tarsal ratio 2.60. 'vYing membrane whitish, 3 larvae, 1 pupa. Suffolk Co., Orient Beach, Long anterior veins Ie r n' " macro ric iamo era e y numerouson IS a NORTH CAROLINA: Carteret Co., Bogue Island, of wing, 10-20 in anal cell. Halt€lr pale. 17.x.1974, G. Steyskal, 1 male. 26 Insecta Mundi
Abdomen: Brown, pleura micloscopically Etymology. This species is named in honm of its spiculose, with sparse fine setae arising from small collector, Art Borkent ofSalmon Arm, British Co- pigmentedtubercles. Spermathecae(Fig. 40) deeply lumbia, in recognition ofhis important additions to pigmented dark brown, elongate ovoid with taper- ourknowledgeofNorth American Ceratopogonidae mg necks; subequal, each measurmg 143 by 79 and also for his contributions on the phylogeny of microns including necks. nematoeerous Diptera.
Male Allotype. ','ling length 1.76 mm, bleadth Discussion. At,ichopogon borkenti is most closely 0.55 mm; costal ratio 0 66 related to the group of species with six scutellar Similartofemale with usualsexualdifferences. bnstles and oblique mandIbular teeth. AIl other Head, body and legs dark brown, almost black. known species of this group are Neotropical in Wmg pale, nearly whItIsh; bare of macrotnchla. distribution. AtriclWpogon borkenti differs from A. Antenna with dark bro'lln plume; segments 11 15 deyrupi and A. archboldi, species of this glonp lengths 50-75-150-118-158 microns. Hind leg with occurring in the southern United states, by its lengths flOm femuI to T5, 575-540-346-115-94-65 shining blackish thorax and dark brown legs, and 72 microns; tarsal ratio 3 00 by its short antenna and spermathecae with long Genitalia (Fig. 39): Nmth tergite about as tapermg necks. broad as long, posteriormargin ev~mly curved, with long brown bristles; ninth sternite with numerous fine setae, candomedian excavation very shallow. Atrictlopogon deyrupi Wirth, new species Gonocoxite moderatel slender 2. im I n , y ar ua e; gonos y us . as ong ;:o~~;c:r~;,itt~p:~fr?:l~sc:~~ye~~~~:~:~~e:;r:~g~; Description:FemaleHolotype Wmglength 1.68 mm; breadth 0.65 mm; costal ratio 0.73. curved tip.•A.edeagus O. 75 as long as basalbreadth, Head: Brown; antenna dark brown; palpus basal arch to half of total length; lateral margins yellow, fifth segment and distal portion of fourth expanded, winglike, but with shouldels evenly brown. Antenna elongate, flagellar segments r~und; to~on,,::~ bodYi:st~m:dian ;ain process lengths 54-36-36-36-36-36-36-36-125-125-136-144- 180 microns; proximal segments slightly broader than long; antennal ratio 2.34. Palpus (Fig. 35) Distribution. Alberta, British Columbia. segments lengths 57-116-160-72-79 microns; third segment slightly swollen on distal pOl tion, with deep sensory pit near tip; paJpaJ ratio 4 20 Probos- C umbIa, 20 III E Pember n,14~Vlll.l ,. cis relatively short, length 576 microns; P/H Ratio ~~~;~~~ sweetn5 ~o;;ers oL Salix 266 Mandible (Figs 5, 38) WIth 23 slanting teeth, CF4(deposltemNC . aratypes, 24males, teeth progressively smaller proximally. 47 females, as£ollo...1s: ALBERTi\.: BanffNat. Park, Thorax: Brown; scutumwith threefaint, broad, 7.viii.1950, G. E. Shewell, 5 females (CNCI). BRIT brownish vittae. Scutellum yellowish with small ISH COLUMBIA. Same data as types, 2 males, 5 yellowish marginal bristlescmd nu;erous fine, short, hairlike setae; paratergite with one strong , r lema es or en coL); m bristle-like seta plus scattered small setae. Legs ,, , , , ~mu us, oe e ia), 4 males, 8 females (Borkent extensor bristles, these about twice as lon~as coR). Courtney, 24 km \V, 17. vii. 1991, AB, 1 male thicknessoftibia. Hindleg with lengthsfwm fe ur (Borkent colI.). Hope, 42 km NE, 2.viii.1991, AB to T5 900-862-434-] 86-] 5] -] QQ-] ] 5 microns; tarsal ratio 2.20. Wing grayish hyaline, anterior veins yellowish brown; second radial cell three times length offirst; macrotrichia moderately numerous on distalfourth of wing, 10-15 in anal cell. Haltel 13 females (Borkent colI.). Squamish, 20 km N, pale. 29. vii. 1990, AB, 2 males (Borkent call ) Abdomen: Pale brownish with dark brOWIllsh segmentalbandslaterally; sparsevestitureofshort, Vol. 8, No.1 - 2, March - June, 1994 27 fme, hairlike setae. Spermathecae (Fig. 41) dark Etymology. This species is named for Mark A. brown pigmented; oval without distinct necks; Deyrup of the Archbold Biological Station at Lake subequal, each 150 by 108 microns. Placid, Florida, in appreciation ofhis keen interest in the ecological adaptations ofthe invertebrates of Male Allotype. Wmg length 1.52 mm, breadth the south Flonda sand scrub to theuxenc habitats. 0.47 mm; costal ratio 0.68. Mark has been of unfailing and generous assis Similartofemale with usualsexualdifferences. tance to me in my project to study the Archbold Antenna with sparse plume of brown \'erticils, cer atopogonids. palpus yellowish, segment 5 and apex of 4 brown- ish. Antennal segments 11-15 lengths 50-72-216 DISCUSSIOn.AtnclWpogon deyrup~ andA. archbold~ 153-162 microns. Palp'ls short, lengthsofsegments are closely related, differing from the other North 43-72-93-43-54microns. Thoraxdark brown; scutel AiriericanA. (LoplWmyidium) except A. borkentiin lumyellow, with sixyellowish bristles. Legs yellow possession of 6 8 scutellar bristles and slanting ish; tibiae brownish, especially hindpair; lengthsof female mandibular teeth. A. deyrupi is immedi- hindleg flOm femur toT5, 775-680-324-159-130-87 ately distinguished by the contrasting yellow color 87; tarsal ratio 2 04; hind tibia with pale extensor of the proximal palpal segments, and also differs bnstles tWice as long as thickness of tibia. from A. archbold~ m havmg fewer macrotnchla on Genitalia (Fig. 42): Prominent, yellowish, the female wing (10 15 in anal cell), and larger, somewhat enlarged. Ninth tergite oval in profile equal-sized spermathecae. The male ofA. deyrupi with truncated base, 360microns long by 280 wide, can be distinguished flOm the male orA. at chboldi ninth sternite 108micronslongwith shallow caudo- by the reduced antennal plume and short, broad, median excavation. Gonocoxite moderately stout, yellowish genitaha With short, stout, hook-hke 216 by 93 microns; gonostyills markedly short, gonostylus. Atrichopogon archboldi has a broader stout, 155 microns long by 43 basal thickness, dlstnbutIOn ill thesouthernmostUnitedStates and eurvedhooklike, taperingto pointedapex. Aedeagus the Neotropics, ..,hile A. aeyrupi is apparently not as broad as typical in genus, 160 microns wide confined to a limited area in Florida and southern by 144 long, basal arch reduced to a low conca\'ity Mississippi. between basal arms; posterolateral shoulders broadly rounded; dlstomedianprocesssessile, broad and caplilu~, arising from an M shaped linear sele Atrichopogon archboldi 'Nirth, new species rotization. (Figs. 43-47) Immature Stalres. Unknown. Description:FemaleHolotype. Wing length 1 58 mm; breadth 0.64 mm; costal ratio 0.73. Distribution. Florida, Mississippi. Head' Dark brown inclUding antenna andpal pus. Antenna (Fig. 43) flagellar segments lengths Types. Holotype female, allotype male, Florida, 54 40 36 36 36 36 36 36 133 133 144 144 168 mi Highlands Co., Lake Placid, Archbold Biological crons; ~roximai se~ments slightl~ broader than Station, 13· 19.iv.1970, W. W. YliIth, light trap. long, at enna} rati W Valenzuela, 17. v.1986, R. E. '.'lOOdI ufr, UV light Literature Cited trap, 1 male, 29 females (FSCA). Boesel, M. Vl. 1973. The genus At,ichopugon (Diptera, Ceratopogonidae) in Ohio and neigh Acknowledgments boring states Dh io Journal of Science 73' 202- I gratefullyacknowledge thegenerousandskill· 215. fulassistanceof SturgisMcKeeverof Georgia South ern University in dissecting the mouthparts of the Cavalieri,F.,& Chiossone,I.P., andChiossone, Atrichopogon material I submitted to him, and for I. P. 1973. Notas sobre el generoAtrichopogon fuInishing thescanning electIon micIoscopephoto- KieffeI, 1906, de la Argentina (Diptera, graphs presented in Figs. 1-12. Ceratopogonidae).1. Consideraciones generales I am greatly mdebtedtotoRyszardSzadziewskl y descnpclon de Atrichopogou delpoutei sp. ofthe University ofGdansk, Poland, for the loan of nov. Revista de la Sociedad Entomologica specimensofA. fusculus (Goquillett) andA rostratus Argentina 34: 119 129. (Winnertz)fI om hiscollection, lOJ notesandsketches presenting their distinguishingcharacters, andfor Cole, F. R. 1969. The Flies of Western North critical review of my manuscript. I also wish to America UniversityofCalifornia Press, Berke- thank Leif Lyneborg of the Zoologisk Museum In ley and Los Angeles, 693 pp. CopEmhagEm, Denmark, and Dr. Szadziewski fOr arranging for me to examine the type of A. Coquillett, D. W. 1901. New Diptera in the U. S. polydactylus Nielsen from the Copenhagen Mu- National Museum. Proceedings of the United seum. States National Museum 23. 593-618. I especially thank J. Antony Downes of the Museum ofNature, Ottawa, Canada, fOrcontmued Cordero, E. H. 1929. Contribucion al estudio de advice and encouragement and to him and Jeffrey los Dipteros del Uruguay. 1. Lophomyidium Gumming for the loan of a large collection from the uruguayense n. gen., n. sp. Nueva Canadian National Collection. Ceratopogoninaihematofaga. Anales delMuseo I am also indebted to the following persons and de Historia Natural de Montevideo 3: 93-108. institutions for the loan of material from their collections: NaturalHistoryMuseum,London, U.K., Downes, J. A., and Wirth, W. W. 1981. through John Boorman and Bruce Townsend, fOr Geratopogonidae, pp. 393 421,In: J. F. McAlpine, loan ofparatypes ofAtrichopogon taeniatus Macfie. et al., eds. Manual of Nearctic Diptera. Vol. 1. Illinois NatUIal IIistOlY SUIvey, UIbana, thwugh AgIicultuIe CanadaMonoglaph No. 21, 614pp. Donald W Webb, for loan ofmaterialfrom the JB Malloch collection. New York State Museum, Al Edwards, F.W. 1926. Onthe British bitingmidges bany, (Hugo Jamnback and Jeffrey Barnes) for (Diptera, Geratopogonidae). Transactionsofthe rearedspecimensofA. jamnbacki. CaliforniaAcad- Entomological Society of London 74: 389-462. emy ofSciences, San Francisco, thIOugh the kind ness of Paul H. Arnaud, Jr. National Museum of Ewen, A. G., and Saunders. L. G. 1958 Contri- Natural History, Smithsonian Institution, Wash butions toward a revision of the genus ington, DC, (through B V Peterson) Art Borkent AtriclWpogou based on characters of all stages of Salmon Arm, British Columbia, for the loan of (Diptera, Heleidae). Canadian Journal ofZool- extensive material from western Canada. W. L. ogy 36: 671 724. Grogan, Jr.,ofSalisburyStateUniversity,Salisbury, MaIyland, fOl specimens of A. jumnbm.:ki fwm Glukhova, V. M. 1981. [A comparative morpho eastern Maryland and A II/RCI/ius from Utah (and logical review ofthe mouthparts offemales and also for critical review of my manuscript). G. R. males in the subfamilies Dasyheleinae and Spinelli, Instituto de Limnologia "Dr. Raul A. Forcipomyiinae (Diptera, Geratopogonidae)]. Ringuelet," La Plata, Argentina, for Argentinian Entomologicheskoe Obozrenie60: 62-76 (in Rus- specimens orA. delpontei CavalieIi & Chiossone. sian, tIanslation in Entomological Revue 60. I alsowish tothankDoctorsBorkentandGrogan 59.72, 1981) for their very helpful reviews of my manuscript. 30 Insecta Mundi Goetghebuer, M. 1920. Cetatopogoninae de Malloch, J. R. 1915. The Chironomidae, 01 midges, Belgique Memoires du Musee Royal d'Histoire ofIllinois, with particular reference to the spe- Naturelle de BelgIque 8: 1-116. cies occurrmg m the IllinOls RIver. Bulletm of the Illinois StateLaboratoryofNaturalHistory Goetghe6uer, M. 1923a. Ceratopogonines de 10: 275·543, 24 plates. Belgique. Parasites aeeidentels de l'homme. Bulletin delaSocieteEntomologiquede Belgique McKeever, S., Hagan, D. V., andGrogan,W. L., 5. 34-37. Jr. 1991. Comparative study of mouthparts of ten species of predaceous midges of the tribe Goetghebuer, M. 1923b. Larves et nymphes de Ceratopogonmi(Diptera: CeratopogoOldae). An Ceratopogonines.....<1Jlnales de Biologie Laeustre nals of the Entomological Society of .America 11: 173-186. 84: 93-106. Goetghebuer, M., and Lenz, F. 1933-1934 McKeever, S ,Wright, M. D, and Hagan, D. V. Heleidae «CeratopogoOldae). In: Lmdner, E., 1988. Mouthparts offemales of four CullCOUleS ed. Die Fliegen der Palaearktischen Region species (Diptera: Ceratopogonidae).•.<1Jlnals of Fam. 13.77: 1-48 (1933),78: 49-133 (1934), 12 the Entomological Society ofAmerica 81: 332 plates. 341. Ingram, A., and Maefie, J. w. s. 1922. West Nielsen, A. 1951. Contributions to the metamor African Ceratopogoninae Part II Annals of phosis and biology of the genus Atrichopogon TropIcal MedlCme and ParaSItology 16: 243 Kieffer, WIth remarks on the evolutlOn and 282. taxonomy of the genus. Det Kongelige Danske Videnskabernes Selskab, Biologiske Skrifter 6: Ine:ram, A., and MacCie, J. ·vv. s. 1931. 1-95. Ceratopogonidae. Diptera of Patagonia and South Chile, part II, fasc. 4, pp. 155-232. Lon OrtIz, I. 1952. Apuntes en CeratopogoOldae don. (Diptera, Nematoeera) III. Sabre una nueva especie deMonoheleaKieffer, 1917i(Monohelea Johannsen, o. A. 1943. A generic synopsis of the ocumare n. sp.). Revista Sanidad y Asistencia Ceratopogonidae (Heleidae) ofthe Americas, a Social (Caracas) 17: 253-256. bibliography, and a list of the North American species Annals ofthe Entomological Society of Ortiz, I. 1972. Sabre una omision en la descripcion AmerIca 36: 763-791, 3 plates. de Monoh€lea ocumare Ortiz, 1952 (Diptera: Ceratopogonidae). Re vistade InstitutoNaeional Kieffer, J. J. 1906. Diptera. Fam. Chironomidae. de Higiene (Caracas) 5: 149-151. Fasc. 42, 78 pp., 4 plates In: Wytsman, P, ed Genera Insectorum. Bruxelles. Remm, H. 1961. Estonian species of the genus Atrichepog9n, Kieffer (Diptera, Heleidae). II. Kieffer, J. J. 1925. Dipteres (Nematoeeres Deseription ofthree new speeies and key for the piqueurs): Chironomidae Ceratopogoninae. identification of Estonian species ofthe subge Faune de France 11. 1-139. nus Attichopogon s. st1. (In Russian. English summary. Entomologicheskoe Obozrenie 40: Lewis, F. B. 1959 Abundance and seasonal distri- 920-928 (English translatiOn m EntomolOgiCal butionofthecommonspeciesofCeratopogonidae Revue 450: 527-532). (Diptera) occurring in the state ofConnecticut. Canadian Entomologist 91: 15-28. Remm,II. 1979. Eestinsv habesaasklaste Mycetophilidae. 448 pp. Akademiai Kiado Winnertz, J. 1852. Beitrage zur Kenntnis der Budapest. Gattung Ceralopogon. Linnaea Entomologica. Berlin. 6: 1-80. Snow,W. E., Pickard,E.,and Moore, J. B. 1957. The Heleidae of the Tennessee River Basin. Wirth, W. W. 1952. The Heleidae of California. Journal of the Tennessee Academy of Science University of California Publications in Ento 32: 18-36. mology 9: 95·206. Thomsen, L. 1937. Aquatic Diptera. Part V. Wirth, W. W. 1956. The heleid midges involved in Ceratopogonidae. Cornell University Agricul the pollination ofrubber trees in America (Dip· tural Experiment Station Memoir 210: 57·80. tera, Heleidae). Proceedingsofthe Entomologi· cal Society of Washington 58: 241-250. Tokunaga, M. 1940. Chironomoidea from Japan (Dipteral, XII. New or little-known Wirth, W. W., and A. Stone. 1956. Chapter 14. Ceratopogonidae andChironomidae. Philippine Aquatic Diptera. In: R. L. Usinger, ed. Aquatic Journal of Science 72: 255·311, 4 plates.. InsectsofCalifornia, with Keys to North Ameri can Genera and California Species. Univ. Cali· Wilkening,A. J., Kline, D. L., and Wirth, W. W. fornia Press, Berkeley, pp. 372· 482. 1985. An annotatedchecklistofthe Ceratopogo nidae (Diptera) of Florida with a new syn onymy. Florida Entomologist 68: 511-537. Figure. 1 - 12. Mouthparts or Aer;"hopogon, 1-6, remale mandibles or, 1-2, A. fusculus; 3-4, A.jamnbacki; 5-6. A. ckyrupi. 7-12, A. jamnbacki; 7-8, remale; 7, labrum; 8, lacinia; 9-12, male; 9, mandible; 10, labrum; J1. hypopharynx; 12, laeinia. or male (SEM photographs by Sturgis McKeever; 2, 4, 6, 8-12, low power; 1,3, 5, 7, high power). 32 Insecta Mundi 13 ,'" ...;~..~ ...... ;. 14 - ~\ r--- ~ ~jA-"'" / ~ / ~ " / '\ \ \ / j I - - . .I,'f,' , 1 1 "- ./ ~ ) ~ * I r r jn 1 r V / - 7 r r r 1 T / r"l T \ <::>l~ ~ \ ""'- / , " ~ .- '\------(~~I \!"-=, c' \ -It~'~-~I I - - '\ '~, ~- ~ J J 'wP\;'i' --' I ~ .-/ .." I I \ I \ / '" \ , 0 .. • \ I , ,,\ \ \ • 0 I ., " " .. \ " \ ::'~; ~; .11~1~: ~:~'~~~""~'\~">:'\:~';:'~)'"~'~''''' \ \ / ':/1; ,: : : \ "- ff ~l/ I ",'. '.,.' " ~., " " 1 , '\ .-' - / '.~:\''.~', ", ...." \:~::;\.,\~' \~\ ~ ,~~;- ~:'-- -~ .. \ " ,,' \ \.., ------/"~ " ~l~ ------~--v-/ jF/ 1)('\ '5 -- -...... -- Figures 13 - 20. Atrichopogon fusculus; 13-18, female; 19-20, male: 13, antennal segments 9-12, 15; 14, palpus; 15, mandible; 16 , wing; )7, spermathecae; 18, genital sclerotization; 19, a@d@agus; 20, g@nitalia, aedeagus omitted. Vol. 8, No.1· 2, March· June, 1994 33 Figures 21 - 27. Atrichopogon immature stages; 21-23, 25-26, A. fusculus; 24, 27, A. jamnbacki: 21, larva, lateral view; 22, larval bead; 23-24, larval bead and tboraclC segments 1-2; 25, pupa; 26-2'7, respiratory born of pnpa (Fig. 21 from Downes & Wirth 1981; 22 from Ewen & Saunders 1958; 25-26 from Nielsen 19.51). 34 Insecta Mundi I r '- 7' 7' 30-- '--/ ( / ------~ I \ '4 I , .. /.{g{~~~~. ~----..",.".- t:t:~~~. ~ ~ I 11 I \ I :.~.:: ',.:.. ..:..:.:., ...... ;.;.::::.:... \ , / \ , \ , \ -- ,, ,, ~~\ /' I ) \ - ...." jt)~',,~ •• 1. 1 "'l1 ~~t :, ~" •• '.t· ." , 't.\. J:).~:?~ ~ ·\r':~::::~'~:i:~:~}~t~ ~ A{:.l;)!i;~~~:J;g~~;;Jihl~~ ( \/\ I \ Figures 28 - 34 28-32,34, A jamnbacki; 33, A lllsclIllIs; 2830, 34, female; 31, male; 3233, last three abdominal segments of larva: 28, mandible; 29, palpus; 30, antennal segments 9-12; 31, genitalia; 34, spermathecae. Vol. 8, No.1· 2, March· June, 1994 35 I /\ rJl...... f '\ ) ---- \ / l / --- \ \ '\ ') I \ /.' \ /"'- -'-t,,.. ~,·;::'.1· ...... / Ii.= ./ .:.::..... ~ ...... A ;'"" II .A~t~~f::: , - /If'"." , ;¥!Ph~,::.:-j \J -" ·.········,;<711 ~--_.- .\".. :.,;,; . '""'" \ , ,"- "\ .i 1\ \ , '- I"\ ~b I~O ~{ , \ " ):::;.. ,, I / / I "- \ / ,, / ~ '~ I " , } " J/' ---... -.....---..--..r-../ \ ~~ \ / I \ I \1,./ ~ \ LJ ~ ~ ~"...... ,:;. 39 ~ ~ ...:::..... ;':::\ /" ~W I \ ")0 .:."~ '""-' 1~~~}~ n \ ~~~~~r \ "'::::1 " '01 / /' \\ / - \ -... I ..:> 7 --- \, \ ~ ::.. I \ / \. ~ I \ '-' ~ ~ ; A \ / \ /Af'\ I, ~~:~ Figures 35 - 42 35, 38, 41-42, i1trichopogon deyrupi; 36-37, 39-40, i1 borkenti; 35-38, 40-41, female; 39, 42, male: 35-36, palpus; 37, antennal segments 9-12; 38, mandible; 39, 42, genitalia; 40-41, spermathecae. 36 Insecta Mundi ----t:=f------\__-~-- 1 \ j / / \ I!~' (\A,\:,',. .;,'.://,Ii ,/', e... ~____ ---~ ~;~ ./ \ ------t-l,P<-\+...-,-+V+-l'------+---""--~--'~'" ...... ,,"------...... /.':-..//\//"1. 7.' " '\ I : ,~ .... ~ '.' ~ /I r-. • , ..#':.":" , ,, ~ I I,I I \ I I , , I, :I I \ I \ \ I \ \ / ~- q./ A.__ I \ Figures 43 47. AtrieOOpogen arek1Joldi; 43 46, female; 47, male: 43, antenna; 44, palpus; 45, spermatheeae; 46, anterior view of head, antennae omitted; 47, genitalia.