Revision and cladistic analysis of Neotropical genus Psilochlorops Duda (Diptera: Chloropidae) Author Riccardi, Paula Raile Author Amorim, Dalton De Souza text Zootaxa 2012 3326 37 48 journal article 10.5281/zenodo.214702 c82211fa-65f2-4cd3-b2c5-8bffeaa4f7d9 1175-5326 214702 Psilochlorops brunneus sp. n. ( Figs. 2, 8 , 14 , 19–21 ) Diagnosis. Frons brown; frontal triangle brown, margins slightly sinuose, not reaching anterior margin of frons, interfrontals outside frontal triangle; occiput dark, bare; gena yellow, about 1/4 eye height. Pleural sclerites more or less homogeneously brown. Material examined. Holotype . 3, Peru (durch Schnabl), Coll. H. Loew ( USNM ). FIGURES 19–21. Psilochlorops brunneus (holotype), sp. n. 19 . Habitus. 20 . Hypandrial complex, ventral view. 21 . Epandrium, ventral view. Legends, ep epandrium; hyp hypandrium; mes mesolobus; sur surstylus. Scale bar, 1 mm. Description . Total length, 4.5 mm . Wing length, 3.7 mm . Male . Head ( Figs. 2, 8 ). Head brown dorsally, yellowish ventrally, as wide as thorax, broader than long in dorsal view, as long as high in lateral view; frontal triangle brown, margins only slightly sinuose, not reaching anterior margin of frons; occiput dark, bare; gena yellow, about 0.25 eye height, postgena about half eye height; eye oval, long axis diagonal; clypeus brownish, dusted; labella brown; palpus yellow basally, brown in the apex; face with a brown stripe ¾ ateriorly. First flagellomere yellow basally, dark brown on distal half; arista dark brown; one row of interfrontals external to frontal triangle; postocellars convergent; inner and outer verticals well–developed; more than one row of setulae at lower margin of gena, no distinct vibrissa. Thorax ( Figs. 14 , 19 ). Scutum mostly brown, with three dark brown stripes, less than twice as long as broad, with dark pilosity; scutellum dark yellow. Pleura mostly brownish, post–pronotum yellow, with a brown mark, bristles probably broken; pleural sclerites quite homogeneously dark brown. Halter with stem brown, knob pale yellow. Legs dark yellow, hind tibia dark brown, tibial organ brownish. Wing . Slightly brownish. Costal sections one to four: 16-16-4-1. R2+3 and R4+5 slightly concave; R4+5 and M1+2 paralell; M1+2 straight; r-m and dm-cu rather convergent, distant each other 2.5 as long as dm-cu. Abdomen ( Fig. 19 ). Tergites and sternites brown, yellowish along distal margin. Terminalia . Hypandrium wide, with broad ventral projections weakly sclerotized ( Fig. 20 ). Surstylus setose, clavate, fused to epandrium; mesolobus almost square ( Fig. 21 ). Female. Unknown. Comments. The brown pleural sclerites in this species are unique in the genus, and the male terminalia also helps to clearly distinguish this species from other Psilochlorops .