Toxomerus aquilinus Sack, 1941

Borges, Zuleica M. & Couri, Marcia S., 2009, Revision of Toxomerus Macquart, 1855 (Diptera: Syrphidae) from Brazil with synonymic notes, identification key to the species and description of three new species 2179, Zootaxa 2179, pp. 1-72 : 12-14

Toxomerus aquilinus Sack

( Figs. 80–82)

Mesogramma anchoratus Schiner, 1868: 348 (descr.); Osten Sacken, 1878: 125 (citation); Williston, 1886: 313 (cat.);

Kertész, 1910: 149 (cat.); Curran, 1930: 3 (key); Hull, 1943b: 9, 35 (key and illustration); Fluke, 1956: 217 (cat.). Mitrosphen interruptus Enderlein, 1938: 227 (descr.); Metz & Thompson, 2001: 231 (synonym). Toxomerus aquilinus Sack, 1941: 100 (1951: 96) (descr.); Fluke, 1956: 157 (cat.); Thompson et al., 1976: 48 (cat.); Metz

& Thompson, 2001: 228, 231 (key and redescr.).

Mesograpta interruptus Fluke, 1956: 224 (cat.).

Diagnosis. Face 1/3 as long as eye width, yellow; frontal triangle yellow. Proepimeron yellow; scutum black except broadly yellow laterally; scutellum brown with yellow margins, black pilose; anepimeron black. Femora and tibiae yellow, except metatibia brownish. Wing extensively bare; alula broader than cell BM appically, microtrichose. Abdomen with 3 rd and 4 th terga with apical black transverse area, neither curved anteriorly nor extending to base laterally. Surstylus concave apically in lateral view; postanal process not distinct; aedeagus enlarged, proeminent dorsally; superior lobe somewhat rounded with short dorsal extension, forked distad, with scattered hairs, longer along anteroventral margin, with small lobe posteriorly with hairs.

Female genitalia: 9 th tergum with somewhat quadrangular black macula pointed anteriorly; epiproct slender; cercus slender; hypoproct somewhat triangular; 9 th sternum as in Fig. 81; three rounded spermatecae similar in size ( Figs. 80–82).

Length. Body 9.6–11.5 mm, wing 7.2–8.6 mm.

Material examined. VENEZUELA. Puerto Ayacucho: ♂ & ♀, 19/I/1989, P. J. Spangler, R. A. Faitoute & C. B. Barr ( USNM) . PERU. Cuzco: ♀, 3–6/XII/1979, J. B. Heppner ( USNM) . BRAZIL. Amazonas: Puruzinho , ♂, 14–17/XI – 3–6/XII/1975, Exp. Perm. Amaz. ( USNM) . Rondônia: Vila Velha , 2 ♂ & ♀, IX/ 1973, Alvarenga & Roppa ( MNRJ) ; ♂ & 4 ♀, X/1986, P. Magno & J. Becker ( MNRJ) ; Calama , 10 ♂ & 5 ♀, 19–21/XI/1975, Exp. Perm. Amaz. ( USNM) . Goiás: Corumbá , 4 ♂ & 15 ♀, XI/1946, M. P. Barreto ( MZSP) . Mato Grosso: Maracajú , 2 ♀, II/1937 ( USNM) ; 3 ♀, VI/1937 ( MZSP) ; S. Domingos, ♀, XI/1949, Werner ( MZSP) ; Sinop , 20 ♂ & 22 ♀, III/1976, Alvarenga & Roppa ( MNRJ) ; Vera , 13 ♂ & 7 ♀, X/1973, Alvarenga & Roppa ( MNRJ) . Minas Gerais: Caldas , 5 ♂ & 2 ♀, 8/I/1967, O. Roppa & O. Leoncini ( MNRJ) ; Belo Horizonte , ♀, 15/XII/1972, Grisi ( MNRJ) ; Arceburgo , ♀, XII/1946, Barretto ( MZSP) . São Paulo: Barueri , ♀, 8/XI/1954, K. Lenko ( MZSP) ; Santo Amaro , 2 ♂, II/1950, J. Lane ( MNRJ) . Paraná: Porto Cabral , ♂, 20–31/ III/1944, Trav. Fo, Carrera & E. Dente ( USNM) .

Geographical record. Widespread, from Mexico to southern Brazil.