Oxysarcodexia sarcinata Lopes, 1953

Souza, Carina Mara De, Pape, Thomas & Thyssen, Patricia Jacqueline, 2020, Oxysarcodexia Townsend, 1917 (Diptera: Sarcophagidae) - a centennial conspectus, Zootaxa 4841 (1), pp. 1-126 : 95-96

Oxysarcodexia sarcinata Lopes, 1953

( Figs 244–247 )

Oxysarcodexia sarcinata Lopes, 1953: 48 ; Colombia, Medellín. Holotype male and two male paratypes in AMNH (not examined); two male paratypes in MNRJ.

Diagnosis. Male. Length 7.0 mm. Postocular plate with golden pollinosity. Ocellar bristles well developed. Thorax and abdomen with golden pollinosity; T5 partly with golden pollinosity. Two well-differentiated posterior and 1–3 smaller anterior post-sutural dorsocentrals. Apical scutellar bristles present. Legs blackish. T3 with 2 pairs of lateral marginal bristles, T4 with 1 pair of median marginal and with 2 pairs of lateral marginal bristles. ST5 with deep median cleft with margins almost parallel and with bristles on distal half of arms. Cercus sinuous in lateral view, with expanded obliquely cut apex. Cercus with bristles ventrally absent only on middle portion. Cerci with distal third broader than middle part in posterior view; diverging and with a distinct constriction mid length. Pregonite with expanded base and sudden narrowing at apex; unicolorous. Postgonite with expanded base, gradually narrowing to apex; unicolorous. Distiphallus with smooth ventroapical margin, rounded apex and sinuous dorsal outline. Vesica notably asymmetrical, with angular median projection of main branch; distal lobes well developed, with filaments, tapering, sclerotized, with spines only on ventral surface.

Remarks. Oxysarcodexia sarcinata is one of the species of Oxysarcodexia possessing a distinctly asymmetrical vesica, in which the right distal lobe is well developed, long, filamentous, directed upwards and with spines on the ventral surface, whereas the left distal lobe is reduced, comprising only the basal portion ( Figs 246–247 ). Female unknown.

Distribution. NEARCTIC. Mexico (San Luis Potosí). NEOTROPICAL. Colombia, Costa Rica, Mexico (Alajuela, Chiapas, Guanacaste, Heredia), Panama, Trinidad and Tobago ( Trinidad).

Biology. This species was collected above Eciton burchellii army ant raids on Barro Colorado Island ( Dodge 1968). Chicken viscera and fish heads were used as bait to attract and collect this species in rural, semi-rural and semi-urban areas of Antioquia, Colombia ( Ramírez-Mora et al. 2012). In Guajira, Colombia, this species was collected in forest and urban areas, in decreasing order of abundance, using Van Someren-Rydon traps baited with fermented fruit, decomposing fish, and human feces ( Valverde-Castro et al. 2017).

Type material examined. Paratype ♂: Cali District Western Cordillera Alt. 4.40011. Colombia Jun.27, 1935. / Hebert F. Sohwarz Coll . / Paratype / Oxysarcodexia sarcinata n. sp. Paratypus Det. H. S. Lopes [ MNRJ] .

Other material examined. [♂] PANAMA: Veraguas Pr. Calovébora, Rio Guazarito 14–19 Feb 2000 Col. S. Bermudez C. / 54 / NRM-DIPT 0014326 [ NRM] // [♂] COLOMBIA: Antioquia, Caldas, La Clara, 06°03′06,9″N 75°37′19,2″W 1.640m 7.ii.2010 Tr VSR 15:22 Cols. M. A. Ramírez, J. Durango, H. Areiza / Dexosarcophaga, Det. M. A. Ramírez / Oxysarcodexia sarcinata [ CE-TdeA] // [♂] COSTA RICA: Alajuela prov. Atenas-Orotina Road, Cerro del Aguacate, 869m, 14.viii.2010, T. Pape, 9°58′25,12″N 84°24′52,24″W [ NHMD] // [♂] Costa Rica: Cartago Turialba 2000 23 July 1965 H. G. Real / Oxysarc. sarcinata ♂ Lop. Det. H. S. Lopes [ MNRJ].

Figures

FIGURES 244–253. Oxysarcodexia spp., males. 244–247. Oxysarcodexia sarcinata Lopes (244, 245: Costa Rica, Alajuela Province, NHMD; 246, 247: Colombia, Antioquia, Caldas, La Clara, CE-TdeA). 244. Habitus, lateral view. 245. Terminalia, lateral view. 246. Terminalia, anterior view. 247. Terminalia, posterior view. 248–250. Oxysarcodexia similata Lopes & Tibana (Costa Rica, Cartago, Turrialba, MNRJ). 248. Habitus, lateral view. 249. Terminalia, lateral view. 250. Terminalia, posterior view. 251–253. Oxysarcodexia simplicoides (Lopes) (Brazil, Espírito Santo, Linhares, MNRJ). 251. Habitus, lateral view. 252. Terminalia, lateral view. 253. Terminalia, posterior view.