Oxysarcodexia afficta
Creators: name: Souza, Carina Mara De
name: Pape, Thomas
name: Thyssen, Patricia Jacqueline
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Sarcophagidae
Oxysarcodexia
Oxysarcodexia afficta

description: Oxysarcodexia afficta (Wulp, 1895)
(Figs 12–14)
Sarcophaga afficta Wulp, 1895: 269, 286; Mexico, Morelos, Cuernavaca; Mexico, Veracruz, Atoyac; México, Yucatán. Male and female syntypes in NHMUK (not examined). [Aldrich (1930: 36) studied nine male and one female syntypes from NHMUK.]
Diagnosis. Length 10.0–12.0 mm. Postocular plate with pale golden pollinosity. Ocellar bristles weakly developed. Thorax generally with grayish pollinosity. Two well-differentiated posterior and 1–3 smaller anterior post-sutural dorsocentrals.Apical scutellar bristles absent. Legs blackish.Abdomen grayish with shades of pale golden pollinosity laterally, T5 with golden pollinosity only laterally. T3 with 2 pairs of lateral marginal bristles, T4 with 2 pairs of median marginal and 2 pairs of lateral marginal bristles. ST5 with deep median cleft with margins almost parallel and pilosity on arms. Cercus sinuous in lateral view, with expanded obliquely cut apex and dorsal subapical barb. Cercus with bristles ventrally on proximal half. Cerci with distal third as broad as middle part in posterior view; diverging. Pregonite with expanded base, gradually narrowing to apex, which is darker. Postgonite like pregonite except unicolorous. Distiphallus with smooth ventroapical margin, conical apex, small dorsoapical swelling and straight dorsal outline. Vesica symmetrical; distal lobes well developed, with filaments, tapering, sclerotized, with spines only on ventral surface.
Remarks. Oxysarcodexia afficta (Fig. 13) is similar to O. conclausa, O. thornax and O. timida (Figs 80, 258, 261), the most important differences being the shape of the vesica (Lopes 1946b), where the filamentous distal lobes have their tip curved towards the base and juxtaposed to the phallic tube in O. afficta, are square-shaped with a median “finger-like” projection slanting towards the base in O. conclausa, square-shaped (although with less angled corners than in O. conclausa) with a more slender “finger-like” projection in O. thornax (Fig. 258), and tapering with a few spines asymmetrically distributed along margins in O. timida (Fig. 262). The female of O. afficta has T7 divided into two plates (Tibana & Mello 1985).
Distribution. NEARCTIC. Mexico (Morelos, San Luis Potosí). NEOTROPICAL. Colombia, Costa Rica, Ecuador, Mexico (Chiapas, Jalisco, Sinaloa, Veracruz, Yucatán), Panama.
Biology. Unknown.
Material examined. [♂] N. Perucho; (Otavalo) Ecuador; 200m. I-1971; L. E. Peña col. / Oxysarcodexia afficta (Wulp); ♂; Det. H. S. Lopes / NRM-DIPT 0014214 [NRM] // [♂] Mexico, VU 94; Chiapa de Corzo; COMEXA, 09.11.2010; A. Grzywacz, leg [NHMD] // [♂] 10.8830 / S. America. [Colombia] Villavicencio, Quatquia R. Dec. 1914. 1915-124. / Wellcome Bureau of Scientific Research. / Sarcophaga afficta ♂ Wulp XI. 38- Det. H. S. Lopes / Please return this specimen [MNRJ] // [♂] COLOMBIA Zarzal, Valle La May. 1971 1080m 238 C. F. Waldbauer / Oxysarcodexia afficta (Wulp) ♂ Det. H. S. Lopes [MNRJ].
description: Published as part of Souza, Carina Mara De, Pape, Thomas & Thyssen, Patricia Jacqueline, 2020, Oxysarcodexia Townsend, 1917 (Diptera: Sarcophagidae) - a centennial conspectus, pp. 1-126 in Zootaxa 4841 (1) on page 17, DOI: 10.11646/zootaxa.4841.1.1, http://zenodo.org/record/4405603