Oxysarcodexia plebeja Lopes, 1946

Souza, Carina Mara De, Pape, Thomas & Thyssen, Patricia Jacqueline, 2020, Oxysarcodexia Townsend, 1917 (Diptera: Sarcophagidae) - a centennial conspectus, Zootaxa 4841 (1), pp. 1-126 : 91

Oxysarcodexia plebeja Lopes, 1946

( Figs 231–233 )

Oxysarcodexia plebeja Lopes, 1946c: 142 ; Mexico, Morelos, Cuernavaca. Holotype male and one male paratype in MNRJ, one male paratype in CNC.

Diagnosis. Male. Length 7.0 mm. Postocular plate with golden pollinosity. Ocellar bristles weakly developed. Thorax with golden pollinosity more intense laterally. Three well-differentiated post-sutural dorsocentral bristles posteriorly, although a small bristle can be present among these. Apical scutellar bristles present. Legs blackish. Abdomen with intense golden pollinosity, T5 with golden pollinosity along the entire extension. T4 with 2 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 in lateral view, with expanded obliquely cut apex. Cercus with bristles ventrally in distal half. Cerci parallel, with apical third of each cercus narrower than middle part in posterior view. Pregonite and postgonite both with expanded base, gradually narrowing to apex; unicolorous. Distiphallus with ventroapical concavity with serrated margin, rounded apex and straight dorsal outline. Vesica symmetrical, with rounded median projection of main branch; distal lobes reduced, with filamentous lateral expansions, tapering, sclerotized; median lobe of the filaments with spines only on ventral surface.

Remarks. The shape of the vesica of O. plebeja ( Fig. 232 ) is very peculiar and different from the more typical leaf-like shape seen in Oxysarcodexia . See also remarks on O. augusta . Female unknown.

Distribution. NEARCTIC. Mexico (Chiapas *, Morelos, San Luis Potosí), USA (Texas). NEOTROPICAL. Colombia, Costa Rica, Mexico (Chiapas *).

Biology. The original description mentions specimens collected in fruit fly traps ( Lopes 1946c). At Antioquia, Colombia, in a semi-urban area, this species was collected using chicken viscera and fish heads as bait (Ramírez-Mora et al. 2012).

Type material examined. Holotype ♂: Col.Inst.O.Cruz No. 8.098 / Cuernavaca Est. Morelos Mexico 1800m Dampf 1.XI a 5.XII / HOLOTYPE / Oxysarcodexia plebeja [no italics] ♂ 45 Det. H. S. Lopes / MNRJ 2251 [typed vertically on left side of label] [ MNRJ] // paratype ♂: [ USA] Hidalgo County 3-8 1934 Tax. / Paratype / Oxysarcodexia [no italics] sp. / Oxysarcodexia plebeja ♂ Paratypus Lopes Det. H. S. Lopes [ MNRJ].

Other material examined. [ ♂] SP 25 / Pajar. Mar 12 / O. plebeja ? [from Antioquia, Colombia] [ CE-TdeA] // [♂] [ Mexico] MEX. Chis. 32mi W. San Cristobal Jct 190–195 Hwys. 12, V, 1969 H. J. Teskey / Oxysarc. plebeja ♂ Lopes Det. H. S. Lopes [ MNRJ] .

Figures

FIGURES 228–236. Oxysarcodexia spp., males. 228–230. Oxysarcodexia petropolitana Lopes, paratype (Brazil, São Paulo, MNRJ). 228. Habitus, lateral view. 229. Terminalia, lateral view. 230. Terminalia, posterior view. 231–233. Oxysarcodexia plebeja Lopes (Colombia, Antioquia, Medellín, CE-TdeA). 226. Habitus, lateral view. 227. Terminalia, lateral view. 228. Terminalia, posterior view. 234–236. Oxysarcodexia ramosa (Reinhard), holotype (USA, Texas, Donnas, CNC). 234. Habitus, lateral view. 235. Terminalia, lateral view. 236. Terminalia, posterior view. Figs 234–235 by J.E. O’Hara (CNC); Fig. 236 adapted from Dodge (1966).