Oxysarcodexia similata Lopes & Tibana, 1987

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

Oxysarcodexia similata Lopes & Tibana, 1987

( Figs 248–250 )

Oxysarcodexia similata Lopes & Tibana, 1987: 335 ; Trinidad and Tobago, Trinidad, Aripo. Holotype male (not examined), 14 male paratypes (two examined) and 11 female paratypes in CAS, CNC and MNRJ.

Diagnosis. Male. Length 6.0–8.0 mm. Postocular plate with pale golden pollinosity. Ocellar bristles well developed. Thorax and abdomen with moderately developed golden pollinosity; T5 partly with golden pollinosity. Two welldifferentiated 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 1 pair of lateral marginal bristles. ST5 with deep median cleft with margins almost parallel and with pilosity. Cercus straight in lateral view, with expanded obliquely cut apex. Cercus with bristles ventrally over full length. Cerci with distal third narrower than middle part in posterior view; diverging. Pregonite with expanded base narrowing smoothly to apex; unicolorous. Postgonite with expanded base and sudden narrowing at apex; unicolorous. Distiphallus with smooth ventroapical margin, rounded apex and straight dorsal outline. Vesica symmetrical, with lateral lobes and rounded median projection of main branch; distal lobes well developed, with filaments, tapering, sclerotized, with spines only on ventral surface.

Remarks. Oxysarcodexia similata ( Fig. 249 ) can be mistaken for O. amorosa ( Fig. 20 ) and O. xanthosoma ( Fig. 285 ) due to morphological similarities in the male terminalia. See also remarks under O. amorosa . The female was described together with the male and its genital structures are considered very similar to those of O. amorosa ( Lopes & Tibana 1987) , thus O. similata is a member of the group with females having T7 divided into two plates (see Tibana & Mello 1985).

Distribution. NEARCTIC. Mexico (Morelos, San Luis Potosí). NEOTROPICAL. Colombia, Costa Rica, Guyana, Mexico (Jalisco), Panama, Trinidad and Tobago ( Trinidad).

Biology. In Antioquia, Colombia, O. similata was reported from urban and rural areas and, more scarcely, in forest environments, which according to Yepes-Gaurisas et al. (2013) indicates a preference for human settlements. These authors also reported that O. similata showed a strong attraction to chicken viscera as opposed to human feces, which attracted no specimens.

Type material examined. 2 paratypes, ♂♂; same labels: Costa Rica: Cartago Turrialba 2000′ 23 July 1965 H. G. Real / Herman G. Real Collection / Paratype / Oxysarcodexia similata n.sp . ♂ Paratipo Tibana & Det. H. S. Lopes [ MNRJ] .

Other material examined. [ ♂] PANAMA: Panama prov. Punta Chame , 19.ix.2002, J. Méndez 79°45′W 8°40′N red mangrove stand / NRM-DIPT 0014339 [ NRM] .

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.

FIGURES 15–24. Oxysarcodexia spp., males. 15–18. Oxysarcodexia alectoris sp. n., holotype (French Guiana, Montsinery, NRM). 15. Habitus, lateral view. 16. Terminalia, lateral view. 17. Terminalia, posterior view. 18. Terminalia, ventroapical view. 19–21. Oxysarcodexia amorosa (Schiner) (Brazil, Rio de Janeiro, Angra dos Reis, MNRJ). 19. Habitus, lateral view. 20. Terminalia, lateral view. 21. Terminalia, posterior view. 22–24. Oxysarcodexia angrensis (Lopes) (Brazil, São Paulo, Campinas, LIE). 22. Habitus, lateral view. 23. Terminalia, lateral view. 24. Terminalia, posterior view.

FIGURES 284–292. Oxysarcodexia spp., males. 284–286. Oxysarcodexia xanthosoma (Aldrich) (Ecuador, Napo Province, NRM). 284. Habitus, lateral view. 285. Terminalia, lateral view. 286. Terminalia, posterior view. 287–289. Oxysarcodexia xon (Dodge), holotype (Panama, Canal Zone, Barro Colorado Island, UKAL). 287. Habitus, lateral view. 288. Terminalia, lateral view (flipped horizontally to facilitate comparisons). 289. Terminalia, posterior view. 290–292. Oxysarcodexia zayasi Dodge (Cuba, Las Villas Province, Trinidad, MNRJ). 290. Habitus, lateral view. 291. Terminalia, lateral view. 292. Terminalia, posterior view. Figs 287–289 by M. Engel (UKAL, now AMNH) and C. Chaboo (UKAL).