Revision of Toxomerus Macquart, 1855 (Diptera: Syrphidae) from Brazil with synonymic notes, identification key to the species and description of three new species 2179 Author Borges, Zuleica M. Author Couri, Marcia S. text Zootaxa 2009 2009-08-06 2179 1 72 journal article 1175­5334 Toxomerus apegiensis (Harbach) n. comb. ( Figs. 77–79 ) Mesograpta apegiensis Harbach, 1974: 31 (descr.). Diagnosis. Face 1/3 as long as eye width, yellow with brownish to black vitta; frontal triangle black. Proepimeron black; scutum black except broadly yellow laterally; scutellum black with yellow margins, yellow pilose with black piles on posterior margin; anepimeron black. Pro and mesofemora yellow, metafemur yellow with black annulus; pro and meso tibiae yellow, metatibia black to brownish on basal 2/3 and yellow on apical 1/3. Wing extensively microtrichose; alula broader than cell BM appically, microtrichose. Abdomen with triangular basolateral yellow macula on 3 rd to 4 th terga. Surstylus broader and somewhat triangular apically in dorsal view; postanal process almost 2/3 as long as surstylus; aedeagus enlarged, proeminent dorsally; superior lobe somewhat rectangular with erect setae along anteroventral margin, with small lobe posteriorly with hairs. Female genitalia: 9 th tergum with no distinct black macula; epiproct round, cercus slender; hypoproct somewhat oval; 9 th sternum as in Fig. 78 ; three oval spermatecae similar in size ( Figs. 77–79 ). Length. Body 6.0–8.0 mm, wing 6.0–7.0 mm. Type material examined. Holotype . BRAZIL . Pará : Belém , Mesograpta apegiensis , holotype male, 26/ IV/1967 , Y. Sedman ( CNC ) . Allotype . BRAZIL . Pará : Belém , ♀ , 26/IV/1967 , Y. Sedman ( CNC ) . Paratypes . BRAZIL . Pará : Belém , 2f, 26/IV/1967 , 28/IV/1967 & 2m , 05/V/1967 , 01/VI/1967 , Y. Sedman ( USNM ) . Other material examined . BRAZIL . Rondônia : Vilhena , 3 ♀ , X/1986 , O. Roppa , P. Magno & J. Becker ( MNRJ ) . Mato Grosso : Sinop , ♂ & 3 ♀ , III/1976 , Alvarenga & Roppa ( MNRJ ) . Geographical record . Northern Brazil (Amazon rainforest).