Revision of Opeatocerata Melander, 1928 (Diptera: Empididae: Empidinae) Author Câmara, J. T. Author Rafael, J. A. text Zootaxa 2014 3846 4 502 546 journal article 10.11646/zootaxa.3846.4.2 ea136b1c-dc96-4c41-b078-01ca553453a0 1175-5326 252519 71A80CC3-CDC1-4291-863B-FA7501D60AF5 Opeatocerata melanderi Câmara & Rafael ( Figs 123–128 ) Opeatocerata melanderi Câmara & Rafael, 2011 : 3 . Diagnosis . Abdomen predominantly yellow except lateral margins of tergites 1–7 brown ( Fig. 123 ). Anterior cercus with dorsal subrectangular projection ( Fig. 125 ) directed anteriorly ( Fig. 124 ). Posterior cercus with rounded apex and small ventral protuberance ( Fig. 124 ). Phallus subcylindrical, wider medially, longer than hypandrium ( Fig. 126 ), and with subapical lobes and four denticles on apex, both best seen in ventral view ( Fig. 127 ). Female with tergite 8 subrectangular ( Fig. 128 ); sternite 8 wider at base, anterior margin with V-shaped sulcus occupying more than half of sternite ( Fig. 128 ); genital fork wider at base and arms shorter than base ( Fig. 128 ). Description . See Câmara & Rafael (2011) . Geographical distribution . Brazil (Amazonas and Roraima new record ) ( Fig. 211 ). Additional material . Brazil , Amazonas . BR 174, ZF – 2, Km 41, 4–12.xi.1991 , F. Xavier (2 ♀, INPA ). Roraima , Amajari, Serra Tepequém, 03º44’45.5”N 61º43’39”W , 10–11.vii.2010 , J.A. Rafael, T.K. Krolow. arm[adilha] luminosa móvel ( 1 ♂ , INPA ).