xanthoperna Irwin and Webb (1992:91 Brachylinga A Revision of the New World Genera Brachylinga Irwin and Lyneborg and Lysilinga Irwin and Lyneborg (Diptera: Therevidae: Therevinae) with the Description of a New Genus, Elcaribe Webb Webb, Donald W. Metz, Mark A. Zootaxa 2006 2006-08-14 1288 1288 1 241 MWYF Irwin and Webb Irwin and Webb [264,788,523,550] Insecta Therevidae Brachylinga Animalia Diptera 142 143 Arthropoda species xanthoperna  ( Figs. 24, 47, 70, 93, 116, 139, 162, 185, 206, 213)      xanthoperna  Irwin and Webb (1992:91orig. desc., 111 Figs. 11–16fem. frons, ant., max. palp., wing, genit.) (  Brachylinga). Type locality Brazil, Roraima, Rio Uraricoera, Ilha de Maracá. Holotypefemale in INPA.   Diagnosis   Brachylinga xanthopernais taxonomically associated with  B. curacaoensisand  B. fraternain having the postocular, mesonotal, and coxal macrosetae dark reddish brown; in having the male parafacial silver or gray over entire surface; the male frons lacking setae; the halter knob yellow; in having the wing cell m 3closed; the maxillary palpus pale yellow or at most with basal half reddish brown; and the male tergite 8 ( Fig. 24) narrow (< 0.05 mm).  Brachylinga xanthopernadiffers from  B. fraternaand  B. curacaoensisin having the posterior margin of the hypoproct cone­shaped ( Fig. 24) and the gonocoxite in lateral view ( Fig. 93) attenuate apically. It differs from  B. fraternain having the basal half of the gonocoxite in ventral view ( Fig. 47) quadrate, the median margin rounded, then tapering apically to attenuate projection.  Redescription of male Variation (n=6). Body length 5.3–6.3, 5.8 mm.  Head. Ommatidia smaller ventrally and laterally. Frons pruinescence white, black dorsally as pair of triangles; setae absent. Antenna with scape black, pruinescence gray, pedicel and first flagellomere dark yellow, second and third flagellomeres dark brown; setae on scape black. Parafacial pruinescence silver to gray. Maxillary palpus yellow; setae pale yellow. Genal setae white. Occipital setae white becoming lanceolate, appressed dorsally. Postocular macrosetae dark reddish brown.   Thorax.Macrosetae dark reddish brown, 3 np, 2 sa, 1 pa, 2 dc, 2 sc. Mesonotum brownish gray; setae black, short intermixed with white, lanceolate, appressed setae. Pleuron pruinescence gray; setae white on propleuron, anepisternum, laterotergite, metanepisternum, and scutellum, absent on katepisternum. Wing.Membrane pale brown; veins brown, Sc and R 1yellowish brown; pterostigma dark yellow; cell m 3closed, petiolate. Halter knob pale yellow, stalk yellowish brown. Legs.Coxa setae white, present on posterior surface of midcoxa; macrosetae dark reddish brown. Forefemur pale reddish brown, midfemur dark yellow, hindfemur dark yellow, apex dark brown; ventral setae white on fore­ and midfemora, dark brown setae apicoventrally on forefemur; av 0:0:3–4, pv 0:0:2–8. Tibiae dark yellow, apex reddish brown. Tarsomeres 1–2 dark yellow, apex dark reddish brown; 3–5 dark reddish brown.  Abdomen.Tergite 1 black, tergites 2–3 dark brown laterally, black anteromedially with white posterior margin, tergites 4–6 black with white posterior margin; dorsal setae dark brown on dark areas of tergites 2–6 becoming white, appressed posteriorly; lateral setae white, erect.  Terminalia(MEI 048100) dark brown. Tergite 8 ( Fig. 24), narrow medially ( 0.02 mm); setae yellow, elongate, continuous across posterior margin. Sternite 8 ( Fig. 47), sides rounded, posterior margin emarginate; setae pale yellow. Epandrium ( Fig. 24), sides rounded; setae dark brown. Cercus ( Fig. 24), ending basal to apex of hypoproct. Hypoproct ( Fig. 24), posterior margin rounded, ending distal to apex of cercus. Gonocoxite ventral view ( Fig. 47), basal half quadrate, rounded laterally, median margin rounded, tapering apically to attenuate projection; setae dark yellow, apical macrosetae dark brown; dorsal view ( Fig. 70), posteromedial lobe short, gonocoxal bridge absent; lateral view ( Fig. 93) attenuate apically; ventral lobe ( Fig. 47) with ventral spines. Gonostylus ( Fig. 116), basodorsal lobe large, rounded; ventral margin sinuate, setae dark yellow, not directed apically in distinct tuft; fine short spines absent laterally. Aedeagus with dorsal apodeme ( Fig. 139) broad, rectangular, posterolateral margin rounded; ventral apodeme ( Fig. 162) tapered anteriorly, not extending to margin of dorsal apodeme; distiphallus dorsal view ( Fig. 139) tapered apically, lateral view ( Fig. 185) broadly curved ventrally with apicolateral spines; ejaculatory apodeme ( Fig. 139), anterior margin truncate.  Female Similar to male except for following. Variation (n=10). Body length 5.8–7.5, 6.8 mm.  Head.Frons pruinescence yellowish brown, extending ventromedially to antennal base, ventral fourth silver with large, dark brown circle dorsolaterally; setae dark brown, short. Parafacial pruinescence white.  Thorax.Macrosetae 3 np, 2 sa, 1 pa, 2 dc, 2 sc. Legs.Anteroventral macrosetae 0–2:0:3–7, pv 0:0:1–8.  Abdomen.Tergite 1 black, tergites 2–3 dark brown laterally, black anteromedially with white posterior margin, tergites 4–6 black with white posterior margin; dorsal setae dark brown on dark areas of tergites 2–6 becoming white, appressed posteriorly; lateral setae white, erect.  Terminalia(MEI 121594). Furca ( Fig. 206) quadrate, posterior and anterior margins rounded; length 0.42 mm, width 0.26 mm; anterolateral projection short. Common duct ( Fig. 206) shorter than furca. Spermathecal duct ( Fig. 206) directed anteriorly.   Distribution Brachylinga xanthopernais known from Brazil, Colombia, and Venezuela( Fig. 213). Habitats and phenology   Brachylinga xanthopernahas been handnetted, collected in Malaise traps, and collected by fogging with an insecticide in June, September to December, and February to March.  Specimens examined  Type specimen.  The holotypefemale of  Brachylinga xanthopernaIrwin and Webb(MEI 006913) is labeled "Brazil, Roraima, Rio Uraricoera, Ilha de Maraca [ ­20.117, ­ 56.117],  20–30.III.1987, L. S. Aquino" and is in the INPA. Other specimens.  BRAZIL. RORAIMA. Rio Uraricoera, Ilha de Maraca[ ­20.117, ­56.117],  20–30.III.1987, L. S. Aquino, 2♀MEI 00691 ( MEIC), 006915 (INPA),  Malaise trap;  2–13.V.1987, J. A. Rafael, J. E. B. Brazil, L. S. Aquino, 1♀MEI 006916 ( INHS),  Malaise trap;  21–30.XII.1987, J. A. Rafael, 1♀MEI 006912 ( INPA), insecticide (fogging).  COLOMBIA. MAGDALENA. Santa Marta[11.26, ­74.2],  8.X.1971, G. E. Bohart, 1♂MEI 007774, 1♀MEI 007777 (E MUS).   VENEZUELA. ARAGUA. El Limon[9.93, ­67.02],  480 m,  27.II.1973, C. J. Rosales, 1♀MEI 121566 ( MIZA),  Malaise trap;  19.II.1973, 2♀MEI 121584, 121594 ( MIZA).   GUARICO.  12 kmS Calabozo[8.812, ­67.43],  6–12.II.1969, P. & P. Spangler, 1♀MEI 048157 ( USNM);  Hato Masaguaral,  44 kmS Calabozo[ 8.933, ­67.433],  3–10.V.1985, Menke, Carpenter, 1♂MEI 048100 ( USNM).   MONAGAS. Uverito[8.7, ­ 62.583],  21.V.1981, C. J. Rosales, 1♀MEI 121567 ( MIZA),  Malaise trap;  16.XI.1978, 1♀MEI 121572 ( MIZA).   NUEVA ESPARTA. Las Marites[Laguna de Las Maritas] [ 10.917, ­ 63.917],  3.IX.1953, 1♂MEI 045964 ( INHS).   ZULIA. Distrito Perija,  15.VIII.1967, Frómeth, 1♀MEI 007457 ( MUCR);  Maracaibo[10.648, ­71.64],  20.VII.1967, F. Avila, 1♂MEI 007463 ( MEIC);  Paraguaipoa[11.351, ­71.96],  11.XI.1971, J. Maldonado CaprilesMEI 048200 ( USNM). [408,691,638,661] Brazil Ilha de Maraca. Rio Uraricoera 142 143 1 Roraima holotype MEI 00691 1987-03-20 1987-03-30 1987-03-20 MEIC L. S. Aquino Brazil The -20.117 Ilha de Maraca 76 -56.117 Rio Uraricoera 145 146 2 2 Roraima holotype 1987-05-02 1987-05-13 1987-05-02 INHS J. A. Rafael & J. E. B. Brazil & Aquino Brazil 145 146 1 1 Roraima holotype 1987-12-21 1987-12-30 1987-12-21 INPA Rafael Brazil 145 146 1 1 Roraima holotype 1971-10-08 MUS G. E. Bohart Colombia Santa Marta 145 146 2 1 1 Magdalena holotype 1973-02-27 MIZA Venezuela 480 El Limon 145 146 1 1 Aragua holotype 1973-02-19 MIZA Venezuela 145 146 2 2 Aragua holotype 1969-02-06 1969-02-12 1969-02-06 USNM P. & P. Spangler Venezuela 12 km S Calabozo 145 146 1 1 Guarico holotype 1985-05-03 1985-05-10 1985-05-03 USNM Menke & Carpenter Venezuela 8.933 Hato Masaguaral 77 -67.433 145 146 1 1 Guarico holotype 1981-05-21 MIZA Venezuela Uverito 145 146 1 1 Monagas holotype 1978-11-16 MIZA Venezuela 145 146 1 1 Monagas holotype 1953-09-03 INHS Venezuela 10.917 Las Marites 77 -63.917 145 146 1 1 Nueva Esparta holotype 1967-08-15 MUCR Frometh Venezuela Distrito Perija 145 146 1 1 Zulia holotype 1967-07-20 MEIC F. Avila Venezuela Maracaibo 145 146 1 1 Zulia holotype 1971-11-11 USNM J. Maldonado Capriles Venezuela Paraguaipoa 145 146 1 Zulia holotype