Toxomerus politus (Say)

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 : 47-48

Toxomerus politus (Say)

( Figs. 131–133)

Scaeva polita Say, 1823: 88 (descr.).

Syrphus politus Say, 1823: 88 (descr.); Wiedemann, 1830: 132 (redescr.); Osten Sacken, 1878: 52 (cat.).

Syrphus achoratus Macquart, 1842: 97 (descr.); Kertész, 1910: 149 (cat.& syn.).

Syrphus cingulatulus Macquart, 1850: 459 (descr.); Osten Sacken, 1878: 51 (cat.); Osten Sacken, 1875: 48 (cat. & syn.); Metz & Thompson, 2001: 240 (lectotype des.).

Mesogramma polita Loew, 1866: 157 ; Schiner, 1868: 347; Curran, 1930: 2 (key); Hull, 1943b: 6 (key).

Syrphus hecticus Jaennicke, 1867: 398 (descr.); Osten Sacken, 1875: 48 (cat. & syn.).

Mesogramma anchorata Schiner, 1868: 348 (redescr).

Mesograpta anchorata Osten Sacken, 1875: 48 (cat.); 1878: 125 (cat.).

Mesograpta polita Osten Sacken, 1875: 48 (cat.); 1878: 48 (cat.); Williston, 1887: 98 (redescr.); Miskimen & Bond, 1970: 66 (econ. import.).

Toxomerus politus Kertész, 1910: 149 (cat. & n. comb.); Cotton, 1918: 291; Wolcott, 1936: 349 (note); Thompson et al., 1976: 53 (cat.); Thompson, 1981: 94 (key); Metz & Thompson, 2001: 228, 240 (key & redescr.).

Mesograpta politum Fluke, 1956: 228 (cat.).

Diagnosis. Face 1/3 as long as eye width, yellow; frontal triangle yellow. Proepimeron yellow; scutum black except broadly yellow laterally; scutellum yellow, black pilose; anepimeron anterior and dorsomedial yellow, anepimeron posterior black. Femora and tibiae yellow. Wing extensively microtrichose; alula broader than cell BM appically, microtrichose. Abdomen with 3 rd and 4 th terga yellow on basal 2/3, with narrow black subbasal fascia connected to medial vitta to form L-shaped macula not touching the lateral margin. Surstylus almost all with the same width; postanal process 1/3 as long as surstylus; aedeagus enlarged, proeminent dorsally and ventrally; superior lobe somewhat rectangular, acuminated dorsally, with hairs in distad anteroventral margin and scattered hairs, with small lobe ventrally with hairs.

Female genitalia: 9 th tergum with somewhat trapezoid black macula concave posteriorly; epiproct slender; cercus slender; hypoproct as a triangular arch; 9 th sternum as in Fig. 132; two elliptical spermatecae similar in size ( Figs. 131–133).

Length. Body 8.1–9.5 mm, wing 6.3–7.3 mm.

Material examined. MEXICO. Mexico City: ♂, 15/IX/1923, E. G. Smyth ( USNM) . Guerrero: Iguala, 2

♂, N. H. L. Krauss ( USNM). Sinaloa: El Alamo , 2 ♂ & 2 ♀, 27/IX/1970, D. E. Breedlove ( USNM). GUATEMALA. Amatitlan : 2 ♂ & ♀, 6/VIII/1965, P. J. Spangler ( USNM). EL SALVADOR. San Andres : 3 ♂ & 8 ♀, 20–25/VII/1946, E. J. Hambleton ( USNM). HONDURAS. Santa Rosa: Morazan , ♂ & 2 ♀, 24VIII/ 1990, R. Cave ( USNM). COSTA RICA. Rio la Vieja : 5 ♂ & ♀, 2–3 VII/1967, Flint & Ortiz ( USNM). CUBA. Baraguá : ♂ & ♀, 30/VIII/1929, L. C. Scaramuzza ( USNM). JAMAICA. South Christiana : ♂, VII/1961, J. Maldonado ( USNM). VENEZUELA. Zulia: El Tucuco , ♂, 5–6/ VI/1976. Ar. Portachuelo Pass : 2 ♂ & 4 ♀, 16/ VIII/1967, R. W. Poole ( USNM). ECUADOR. Napo: Limoncocha , ♂ & 8♀, 6/VI/1977 9/VI/1977, P. J. Spangler & D. R. Givens ( USNM). PERU. Loreto: San Antonio , ♀, 14/IX/1965, J. C. Hitchock ( USNM). BRAZIL. Pará: Belém , ♂, 2/IV/1967, Y. Sedman ( USNM). Goiás: Anápolis , ♀, XII/1935 ( MNRJ); Brasília: Distrito Federal , ♂ & 4 ♀, III/1952, A. G. Silva ( MNRJ); Minas Gerais: Serra do Cipó , ♀, 6/XI/1939, Monte, Ribeiro, Lopes & Tupinambá ( MNRJ); Lassance , ♀, 20–31/I/1936, Martins, Lopes & Mangabeira ( MNRJ); Espírito Santo: Vitória , 2 ♂, M. Leitão ( MNRJ); Rio de Janeiro: Floresta da Tijuca , ♀, III/1961, N. L. H. Krauss ( USNM); Tijuca , ♀, III/1974, Seabra ( MNRJ); Friburgo , 3 ♂ & 3 ♀, II/1932 & ♂ & 6 ♀, II/1933, M. Leitão ( MNRJ); Teresópolis , ♀, I/1940, Trav. and Freitas ( MNRJ); Petrópolis , 3 ♀, IV/1924 & ♀, II/1956, D. Albuquerque ( MNRJ); Itatiaia , ♀, 9–10/III/1951, D. Albuquerque ( MNRJ); São Paulo: Emas , ♀, XII/1936, N. Santos ( MNRJ); Ubatuba , ♀, 31/III/1962, K. Lenko ( MZSP); Ilha Seca , ♀, 18–26/II/1940 ( MNRJ); Santo Amaro , ♀, III/1954, J. Lane ( MNRJ); Caraguatuba , ♀, 22/V.I. VI/1962 ( MZSP); A. Alvim , ♂, II/1945, J. Lamosa ( MZSP); Ypiranga , ♂, 7/III/1936 & ♀, I/1934, Lange ( MZSP) ; ♀, 22/II/1936, Morretes ( MNRJ); Monte Alegre , 2 ♂, 25/III/1944, J. L. Lima ( MZSP); Juquiá , ♀, J. Lane ( MZSP); Onda Verde , ♀, I/1946, J. Lane ( MZSP); Japurá , ♀, I/1945, W. F. Almeida ( MZSP); Bocaína , ♀, III/1954, D. R. Barros ( MNRJ); Campos do Jordão , ♀, 31/I/1936, N. Santos ( MNRJ); Santa Catarina: Rio das Antas , ♀, I/1953, Camargo ( MZSP); Nova Teutônia , 10 ♂ & 6 ♀, I/1965, F. Plaumann ( USNM). Rio Grande do Sul: Santa Cruz do Sul , ♂ & ♀, 09/IV/2003, Marcel G. Hermes ( UNISC) ; ♂, 27/VIII/2002, M. N. Morales ( UNISC); Derrubadas , ♀, 26/IV/2003, M. N. Morales ( UNISC) .

Geographical record. Widespread in New World.