New World species of Asymphyloptera Collin (Diptera: Empididae: Clinocerinae) Author Sinclair, Bradley J. text Zootaxa 2015 4048 4 553 564 journal article 10.11646/zootaxa.4048.4.6 12dd6a18-8481-4dc9-8727-8cfbfc138f7a 1175-5326 237775 FE00B390-0362-42F7-B6F8-67D35141E014 Asymphyloptera mexicana sp. nov. ( Fig. 16 ) Type material . HOLOTYPE , ♂ labelled: “Above Oaxaca/ Oaxaca, Mex/ May 20, 1963 ”; “H.E. Robinson/ Collector”; “ HOLOTYPE / Asymphyloptera / mexicana / Sinclair [red label] [dissected]” ( USNM ). Recognition . This is a dark brown species with long ventral setae on the fore femur and hind tibia; narrow, tapered surstylus with pointed apex; apex of phallus expanded, membranous and strongly bent anteriorly. Description . Male . Postpedicel globular with long, slender apical extension, arising subapically. Ocellar setae stout, similar in length to postpedicel extension. Labrum slightly shorter than clypeus; palpus brown, subequal to labrum, tapered to slender apex. Pleura dark brown with thin bluish pruinescence. Chaetotaxy very stout; 1 pprn short, very slender; 2 npl, lower slender and shorter; 4 dc, anterior dc offset; 2 apical sctl, 1.25X longer than prescutellar dc, lacking lateral sctl. Legs dark brown; fore femur with long antero- and posteroventral rows of pale, slender setae, longer than width of femur; fore tibia with biserial row of erect setae; hind tibia with long ventral setae, longer than width of tibia. Wing length 1.8 mm ; crossvein h distinct; base of wing with slender setulae along posterior margin. Halter brown. Male terminalia ( Fig. 16 ): Cercus with anterior lobe not produced; posterior lobe long, slender. Hypandrium prolonged as broad, paired postgonites; apical margin of postgonite extended anteriorly, with beak-like apex. Epandrium narrow, with elongate setae on apical half. Surstylus shorter than cercus, slender, arched, tapered to pointed apex; not extending beyond phallus. Phallus straight; apex expanded, membranous, strongly bent anteriorly; apical margin rounded; ejaculatory apodeme narrow, not expanded. Female . Unknown. Distribution . Known only from the holotype , in the state of Oaxaca, Mexico ( Fig. 17 ). Remarks . The apex of the phallus is very similar to that of A. havasu sp. nov. , but the apex is not hooked and the postgonites have a beak-like, anteriorly-directed apex.