Oxysarcodexia grandis 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 : 61-62

Oxysarcodexia grandis Lopes, 1946

( Figs 139–141 )

Oxysarcodexia grandis Lopes, 1946b: 82 ; Brazil, Rio de Janeiro, Angra dos Reis. Holotype male, female allotype, 13 male paratypes and 11 female paratypes in MNRJ.

Diagnosis. Male. Length 8.0–9.0 mm. Postocular plate with golden pollinosity. Ocellar bristles well developed. Thorax and abdomen with intense golden pollinosity, abdominal T5 with golden pollinosity along the entire extension. Three well-differentiated post-sutural dorsocentral bristles posteriorly and a smaller bristle can be present among these. Apical scutellar bristles present. Legs blackish. T4 with 1 pair of lateral marginal bristles. ST5 with deep median cleft with margins almost parallel and with pilosity. Cercus straight in lateral view, with pointed obliquely cut apex and dorsal subapical barb. Cercus with bristles ventrally only in distal third. Cerci with distal third as broad as middle part in posterior view; parallel. Pregonite with expanded base and sudden narrowing at apex; unicolorous. Postgonite with expanded base, gradually narrowing to apex; unicolorous. Distiphallus with smooth ventroapical margin, a lateroapical furrow, rounded apex and sinuous dorsal outline. Vesica symmetrical, with rounded median projection of main branch and lateral lobes; distal lobes well developed, with filaments, tapering, sclerotized, with spines only on ventral surface.

Remarks. Lopes (1946b) reported that even in specimens from the same colony, post-sutural dorsocentral bristles could be present in variable numbers: 3 or 4, the first three bristles being equidistant, with or without an additional and smaller bristle among them. See also remarks under O. augusta . The female of O. grandis has an undivided T7 ( Tibana & Mello 1985).

Distribution. NEOTROPICAL. Brazil (Amazonas, Paraná , Rio de Janeiro, São Paulo), Colombia, Ecuador, Peru.

Biology. This species has been reared under laboratory conditions by Lopes (1973b), who did not provide further information on its development. It has been collected from human feces, pig carcasses, chicken viscera and fish heads ( Lopes 1973b; Ramírez-Mora et al. 2012; Vairo et al. 2014). Yepes-Gaurisas et al. (2013), in a study on the synanthropy of Sarcophagidae from Colombia, reported the attraction of O. grandis principally to chicken viscera and collected specimens in both rural and forest areas, even though this species was considered infrequent by those authors.

Type material examined. Holotype ♂: [ Brazil] Cultura N. 273 / RIO DE JANEIRO TIJUCA LOPES / Holotype / Oxysarcodexia grandis [no italics] sp.n. Lopes.Det 1944 / MNRJ 2241 [typed vertically on left side of label] [ MNRJ] .

Other material examined. [♂] O. grandis SP 3; Oxysarcodexia, Det.Alejandro Ramírez M 2010 / COLOMBIA: Antioquia, Medellín, Cola del Zorro, 06°22′19,7″N 75°32′43,9″W 1.943m 10.iii.2010 Tr VSR 10:05 Col. M. A. Ramírez / T. de A. 1132 [ CE-TdeA] // [♂] COLOMBIA: Antioquia, Medellín, Cola del Zorro, 06°22′19,7″N 75°32′43,9″W 1.943m 10.iii.2010 Tr VSR 10:05 Col. M. A. Ramírez / T. de A. 1132 / O. grandis [ CE-TdeA] // [♂] TAQUARA PETRÓPOLIS E. do RIO, BRASIL / H. S. LOPES 13.II.72 / Oxysarcodexia grandis ♂ Lop. Det. H. S. Lopes [ MNRJ].

Figures

FIGURES 139–147. Oxysarcodexia spp., males. 139–141. Oxysarcodexia grandis Lopes (Colombia, Antioquia, Medellín, Cola del Zorro, CE-TdeA). 139. Habitus, lateral view. 140. Terminalia, lateral view. 141. Terminalia, posterior view. 142–144. Oxysarcodexia ibera Dufek & Mulieri (Argentina, MACN). 142. Habitus, lateral view. 143. Terminalia, lateral view. 144. Terminalia, posterior view. 145–147. Oxysarcodexia inflata Lopes, paratype (Brazil, Maranhão, Rosário, Igarapé Paraqueú, MNRJ). 145. Habitus, lateral view. 146. Terminalia, lateral view. 147. Terminalia, posterior view. Figures 142–144 by P.R. Mulieri (MACN).