Oxysarcodexia culminata ( Aldrich, 1916 )

Souza, Carina Mara De, Pape, Thomas & Thyssen, Patricia Jacqueline, 2020, Oxysarcodexia Townsend, 1917 (Diptera: Sarcophagidae) - a centennial conspectus, Zootaxa 4841 (1), pp. 1-126 : 46

Oxysarcodexia culminata ( Aldrich, 1916)

( Figs 93–95 )

Sarcophaga culminata Aldrich, 1916: 289 ; Puerto Rico, Mayaguez. Holotype male in AMNH (not examined).

Diagnosis. Male. Length 8.0−9.0 mm. Postocular plate with pale golden pollinosity. Ocellar bristles well developed. Thorax grayish with golden pollinosity at humeral portion. Abdominal T5 with exclusively silvery pollinosity. Two well-differentiated posterior and 1–3 smaller anterior post-sutural dorsocentrals. Apical scutellar bristles absent. Legs blackish. T3 with 2 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. Cercus bent backwards, 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 and with a distinct constriction mid length. Pregonite with expanded base, gradually narrowing to apex, which is darker than base. Postgonite like pregonite, except unicolorous. Distiphallus with ventroapical concavity with serrated margin, conical apex and sinuous dorsal outline. Vesica symmetrical, with angular median projection of main branch; distal lobes reduced, rounded, partially membranous, with spines only on ventral surface.

Remarks. See under O. aurata , O. comparilis and O. culmiforceps . Female unknown.

Distribution. NEOTROPICAL. Argentina (Misiones), Brazil (Rio de Janeiro), Puerto Rico.

Biology. This species has been reared under laboratory conditions and it has been collected from human feces, rotten S. comosa , and rotten banana mixed with brown sugar (the last two in a coastal area) ( Lopes 1973b). Lopes (1973b) noted the distribution of O. culminata in the highlands of Rio de Janeiro, Brazil.

Material examined. [ ♂] PUERTO RICO: Jayuya Bosque Estatal del Toro Negro, 0,7km SE, Cerro de Punta, Cordillera Central / 18-10-09N, 66-35-16W, 1195m, 9 June 1966, J. Rawlins. C. Young, R. Davidson, W. Zanol, S. Thompson, M. Klinger / Carnegie Museum, Specimen Number CMNH-67351 / NRM-DIPT 0014285 [ NRM] .

Figures

FIGURES 90–98. Oxysarcodexia spp., males. 90–92. Oxysarcodexia culmiforceps Dodge (Brazil, Minas Gerais, Extrema, LIE, except Fig. 92 from MACN). 90. Habitus, lateral view. 91. Terminalia, lateral view. 92. Terminalia, posterior view. 93–95. Oxysarcodexia culminata (Aldrich) (Puerto Rico, Ponce, Cerro de Punta, NRM). 93. Habitus, lateral view. 94. Terminalia, lateral view. 95. Terminalia, posterior view. 96–98. Oxysarcodexia cyanea Lopes, holotype (Dominica, Trafalgar Falls, USNM). 96. Habitus, lateral view. 97. Terminalia, lateral view. 98. Terminalia, posterior view. Figs 96–98 by T. Dikow (USNM); Fig. 92 by P.R. Mulieri (MACN).