Engelimyia bosqi (Blanchard, 1939)

Figs 1–8, 39

Paraphrissopoda bosqi Blanchard, 1939: 828 . Type locality: Argentina, Misiones. Holotype ♂ in MACN, not examined.

bosqui: Lopes (1969: 52); erroneous subsequent spelling of bosqi Blanchard, 1939 . bergi: Lopes (1975: 425); erroneous subsequent spelling of bosqi Blanchard, 1939 . Sarcophaga cassidifera: Lopes (1969, in part: catalogue, first appearance of synonymy).

Description of adult male

Body length: 12–19 mm.

Head: Fronto­orbital and parafacial plates and postocular strip with golden microtrichosity. Parafacial plate with very short, fine setae all along eye margin. Frontal vitta black or dark brown; frons at vertex 0.20 x head width; frontal row of 8–11 bristles; one reclinate and no proclinate orbital bristles; outer vertical bristle not differentiated from postocular setae and about 0.25 x as long as inner vertical bristle. Gena and postgena with light golden microtrichosity. Antenna black to dark brown; first flagellomere about 2.5 x as long as pedicel; arista long plumose in basal 0.7. Palpus and proboscis black to dark brown. Thorax: Chaetotaxy: acrostichals 0+1, intra­alars 1+2 (posterior ca. 2x the anterior), supra­alars 2+3, postpronotals 2, postalars 2, notopleurals 4 (2 strong primary setae and 2 short subprimaries intercalated), scutellum with marginal bristles 2, apicals 1 (crossed in distal half or 1/3), discals 1 (shorter than apical), meropleurals 9–10, katepisternals 3 (in a line, middle one very weak), prosternum setose on posterior 3/4, metasternum setose, proepimeron setose, postalar wall setose. Wing hyaline, vein R1 bare, R4+5 setulose dorsally halfway to crossvein r­m, costal spine not differentiated, third costal sector without ventral setae. Legs black; mid tibia with 1 median anterodorsal and 1 median posterodorsal bristles, numerous bristles along all ventral surface; mid femur with a row of 2–4 median anterior bristles, 2–3 median anteroventral, 2 preapical posterior bristles, without ctenidium; hind tibia with 1 sub­basal, 1 median and 1 preapical bristles on both anterodorsal and posterodorsal margins, 1 median anteroventral bristle, numerous bristles on ventral surface, denser and longer than on mid tibia; hind femur with rows of bristles along anterior, anterodorsal and anteroventral surface/margins, 2–3 posterodorsal bristles in the apical half and 1 subapical on posterior surface; hind coxa with dense bristles on anterior surface and few setulae on posterior surface. Abdomen: T4 with 1 pair of median marginals and 3 strong lateral marginal bristles; T5 with 12–14 marginal bristles; ST5 with median part not raised, outline of posterior half triangular in lateral view (Fig. 5). Anterior margin deeply U­shaped, postero­lateral lobes rounded and not particularly broad (Fig. 6). Terminalia: Cercus straight in profile, with scattered setae on mid lateral margin and with an abruptly rounded or truncated apex (Figs 2, 3), dorsal surface gently concave or almost straight. Cerci in posterior view symmetrical and with rounded or slightly triangular apices. Surstylus almost triangular but with slightly convex anterior (or ventral) margin (Fig. 4). Pregonite shorter than postgonite, deeply sinuous on basal margin, distal half perpendicular to basal half; postgonite with slightly curved apex, a median well developed bristle on anterior margin and a much smaller seta near apex (Fig. 7). Phallic tube with a median pointed projection of the ventral margin; a pair of conspicuous posterior apophyses (juxta) run along the posterior surface of a large, membranous apical structure with spines only on the anterior surface; vesica small, triangular in lateral view, and with spinose surface; lateral styli with base expanded into a large, curved, plate­like structure (Fig. 8).

Distribution

Neotropical—Argentina (Buenos Aires, Misiones), Brazil (Rio de Janeiro, São Paulo).

Material examined

Argentina: 2 ♂, Misiones, Alto Paraná, Puerto Bemberg, 13–14.iii.1934, K.J. Heyward (BMNH, MNRJ); 1 ♂, Buenos Aires, Estácion Experimental Loreto, vi.1936, leg. A. Oglobin (MNRJ). Brazil: 1 ♂, Rio de Janeiro, Angra dos Reis, Jussaral, x.1935, L. Travassos & H. S. Lopes (MNRJ); 1 ♂, Rio de Janeiro, Angra dos Reis, Serra de Angra, iii.1932, leg. Travassos, Penido & Werneck (MNRJ); 1 ♂, Rio de Janeiro, Angra dos Reis, 5.vi.1971, leg. H. S. Lopes (MNRJ); 1 ♂, Rio de Janeiro, Rio de Janeiro, Jardim Botânico, ix.1934, leg. H. S. Lopes (MNRJ); 1 ♂, Rio de Janeiro, Rio de Janeiro, vii.1938, Serviço Febre Amarela, M.E.S. (SMNH); 1 ♂ 4Ψ, Rio de Janeiro, Rio de Janeiro, x.1938, Yellow Fever Service, MESBrazil, leg. R.C. Shannon (USNM); 1 ♂, Rio de Janeiro, Rio de Janeiro, 5.vi.1971, leg. H. S. Lopes (MNRJ); 1 ♂, Rio de Janeiro, Corcovado, iii.1932, leg. H. Travassos (MNRJ); 1 ♂, Rio de Janeiro, Corcovado, iv.1934, leg. H. Travassos & H.S. Lopes (BMNH); 1 ♂, Rio de Janeiro, Horto, 14.iv.1932, leg. Aristóteles & J. Simões (MNRJ); 8 ♂, São Paulo, Anhembi, Fazenda Barreiro Rico, 14.ii.1969, leg. W. Kempf, J. C. Magalhães, L. Travassos Filho, M. Kuhlmann, R. Travassos (MNRJ); 1 ♂, São Paulo, São João, [?] 1935, leg. S. Rosenfeld (MNRJ).