Oxysarcodexia comparilis (Reinhard, 1939)

(Figs 76–78)

Sarcophaga comparilis Reinhard, 1939: 66; USA, Texas, Donna. Holotype male and one male paratype in CNC (not examined).

Oxysarcodexia omissa Lopes, 1946c:140; Mexico, Federal District, Chapultepec. Holotype male and seven male paratypes in MNRJ.

Diagnosis. Male. Length 8.5 mm. Postocular plate with pale golden pollinosity. Ocellar bristles weakly developed. Thorax and abdomen with pale golden pollinosity, T5 with golden pollinosity along the entire extension. Two well-differentiated posterior and 3 smaller anterior post-sutural dorsocentrals. Apical scutellar bristles absent. Legs blackish. T3 with 3 pairs of lateral marginal bristles, T4 with 1 pair of median marginal and 3 pairs of lateral marginal bristles. ST5 with deep median cleft with margins almost parallel and with pilosity and bristles at apex of arms. Cercus straight with normal (i.e., as broad as median area), obliquely cut apex. Cercus with bristles ventrally in distal half. Cerci with distal third narrower than middle part in posterior view; parallel. Pregonite with expanded base, gradually narrowing to apex, which is darker than base. Postgonite broad with expanded base and sudden narrowing at apex, darker than pregonite; unicolorous. Distiphallus with smooth ventroapical margin, rounded apex and sinuous dorsal outline. Vesica symmetrical, with rounded median projection of main branch; distal lobes reduced, with filaments, tapering, sclerotized, without spines.

Remarks. This species is similar to O. confusa Lopes, 1946b and O. parva Lopes, 1946b . The most evident difference among these species is found in the cerci (Lopes 1975c). In O. comparilis (Fig. 78) and O. parva (Fig. 212) the cerci are non-diverging in posterior view. However, the distinct constriction in the middle portion of each cercus, present in O. parva and O. confusa (Fig. 84), is absent in O. comparilis . Oxysarcodexia confusa differs from the others species also by having strongly diverging cercus apices. Reinhard (1939) pointed out similarities between O. comparilis (Fig. 77) and O. culminata (Fig. 94), but mentioned that the posterior outline of the phallic tube in lateral view is less sinuous in O. comparilis, the median projection of the main branch of the vesica is rounded in O. comparilis and angular in O. culminata, the distal vesical lobes are slender in O. comparilis, and O. comparilis has lighter pollinosity on the parafacialia and parafrontalia in comparison to O. culminata (Lopes 1946b) . The terminalia of O. comparilis also resemble those of O. occulta Lopes, 1946b, but O. comparilis can be distinguished by the larger vesica and for having vesical distal lobes longer and directed laterally and ventroapically, an angular median projection of the main branch of the vesica, surstylus conical and cercus sinuous. Female unknown.

Distribution. NEARCTIC. Mexico (Distrito Federal, Morelos), USA (Texas). NEOTROPICAL. Ecuador, El Salvador, Mexico (Jalisco, Veracruz).

Biology. Unknown.

Type material examined. Holotype ♂ of Oxysarcodexia omissa: Cuernavaca Est. Morelos Mexico 1800 m Dampf I.XI a 5.XII / Holotype / Oxysarcodexia comparilis [♂] (Reinh.) Det. H. S. Lopes / Oxysarcodexia omissa Lop. Det. H. S. Lopes / MNRJ 2236 [typed vertically on left side of label] / Oxysarc. comparilis (Reinh.) [MNRJ].

Other material examined. [ ♂] [Mexico] Acatlipa Morelos July 29 1950 Coll. N. G. Dorns / Oxysarcodexia comparilis ♂ (Reinh.) Det. H. S. Lopes [MNRJ] .