Oxysarcodexia simplicoides (Lopes, 1933)

(Figs 251–253)

Sarcophaga simplicoides Lopes, 1933: 156; Brazil, Rio de Janeiro, Guanabara. Holotype male and one male paratype in MNRJ.

Diagnosis. Male. Length 8.0–9.0 mm. Postocular plate with silvery pollinosity. Ocellar bristles well developed. Black setulae on postocular plate, gena and occiput. Thorax and abdomen with silvery pollinosity, T5 without golden pollinosity, only silvery pollinosity. Two well-differentiated posterior and 3 smaller anterior post-sutural dorsocentrals. Apical scutellar bristles absent. Legs brownish. T3 with 3 pairs of lateral marginal bristles, T4 with 1 pair of median marginal and 2 pairs of lateral marginal bristles. ST5 with deep median cleft with margins almost parallel and with pilosity. Cercus sinuous in lateral view, with pointed apex. Cercus with bristles ventrally over full length. Cerci with distal third narrower than the middle portion in posterior view; parallel and with a distinct constriction mid length. Pregonite and postgonite both with expanded base, gradually narrowing to apex; unicolorous. Distiphallus with smooth ventroapical margin, ventroapical projections, rounded apex, sinuous dorsal outline and notable lateroapical dilation. Vesica symmetrical, with lateral lobes; distal lobes well developed, rounded, sclerotized, without spines; main branch of vesica enlarged.

Remarks. The presence of slender setulae on the gena and the postocular plate, of the same color (black) as on the occiput, is one of the most striking characteristics of O. simplicoides . The female of O. simplicoides has T7 divided into two plates (Tibana & Mello 1985).

Distribution. NEOTROPICAL. Brazil (Ceará, Espírito Santo *, Mato Grosso, Mato Grosso do Sul, Minas Gerais, Rio de Janeiro).

Biology. Baits such as banana mixed with brown sugar, cow liver and lung, and dead fish and squid, have been used in association with “can” traps, whereas feces have been used as an attractant during active collecting (Lopes 1975a; Pamplona et al. 2000). Adults have also been collected from pig and rodent carcasses in pastures and in urban and natural areas of the Brazilian Cerrado (Barbosa et al. 2009; Rosa et al. 2011; Vasconcelos & Araujo 2012; Faria et al. 2018; Paseto et al. 2019), where they are more abundant in the dry season (Faria et al. 2018).

Type material examined. Holotype ♂: INS.OSW.CRUZ 10.740 / Typus / Rio de Janeiro H. Souza Lopes / Sarcophaga simplicoides Lopes H. S. LOPES-DET. 4—933 / MNRJ 2253 [typed vertically on left side of label] [MNRJ].

Other material examined. [ ♂] P. C. Elias VI-72 / Linhares, E. Santo, Brasil / simplicoides [MNRJ] .