Orosarcophaga grisea ( Lopes, 1982 )

Gomes, Marina Morim, Mello-Patiu, Cátia Antunes De & Couri, Márcia Souto, 2025, The Neotropical genus Orosarcophaga Townsend: illustrated key and redecription of Orosarcophaga grisea Lopes (Diptera: Sarcophagidae), Zootaxa 5716 (4), pp. 571-578 : 575-577

publication ID	https://doi.org/10.11646/zootaxa.5716.4.6
publication LSID	lsid:zoobank.org:pub:26CEF958-5798-4709-9CC2-7AA1E5E201A7
DOI	https://doi.org/10.5281/zenodo.17889809
persistent identifier	https://treatment.plazi.org/id/03A287D1-C304-FFA4-FF1B-0A67A7A6CFBB
treatment provided by	Plazi
scientific name	Orosarcophaga grisea ( Lopes, 1982 )
status

Treatment

Orosarcophaga grisea ( Lopes, 1982)

( Figs. 1–2 View FIGURE 1 View FIGURE 2 )

Oxyvinia grisea Lopes, 1982: 290 View in CoL (description of male). Type locality: Peru, Dept. Junin, Naranjal. Other references: Pape (1996: 272; world catalog).

Type material. 1 ♂ Holotype [ American Museum of Natural History ]: Peru, 1000 m, Estancia, Naranjal, San Ramon, Dept. Junin, 20-27. VII.65, P. & B. Wygodzinsky. H.S. Lopes Det.

Examined material. 1 ♂ MNRJ-ENT1-32437 : BRASIL, AM, Manaus, ZF-2, Km 14, 02º35.21’S 60º09.55’W 16-31.viii.2017 6m malaise trap 24m, J.A. Rafael & F.F. Xavier GoogleMaps ; 1 ♂ [without collection number]: BRASIL, Rio de Janeiro, Petrópolis, E. do Rio , vi/1969, H. S. Lopes col. ( MNRJ) [lost] ( SM1 ) .

Redescription

The following characters are added to the original description ( Lopes, 1982):

Abdomen. Sternite 5 yellow, inner margin with a pair of cushion-like protuberances covered with small strong setae ( Fig. 2G View FIGURE 2 arrow), outer margin with long sparse setae ( Fig. 3D View FIGURE 3 ).

Terminalia. Brown. Surstylus with narrow base and irregular margin ( Fig. 3A View FIGURE 3 ); cercus with long setae on proximal half and small, sparsely arranged apical setae; apex blackish, truncate in lateral view ( Fig. 3A View FIGURE 3 ); pregonite curved, C-shaped, with short dorsal setae near base and apex bifurcate ( Figs. 2D–E View FIGURE 2 ); postgonite slightly curved, anterior margin serrated along distal half, median setae long and exceeding the apex ( Figs. 2B View FIGURE 2 , 3A View FIGURE 3 ); basiphallus and distiphallus distinctly separate ( Fig. 3A View FIGURE 3 ); basiphallus with a dorsal pair of longitudinal keels and ventral surface with a large membranous area forming lateral folds ( Fig. 3A View FIGURE 3 ); median stylus with a basal pair of elongated spinous processes (capitis sensu Buenaventura & Pape 2018) ( Fig. 3B View FIGURE 3 ); lateral styli strongly sclerotized with spinose apex and an elongated base that extends laterally towards the paraphallus wall ( Figs. 2A–B View FIGURE 2 , 3B View FIGURE 3 ); large vesica with a proximal sclerotized part with membranous margin and a distal membranous and ornamented part ( Figs. 2C, F View FIGURE 2 , 3C View FIGURE 3 ); juxta tripartite and sclerotized ( Figs. 2C View FIGURE 2 , 3B View FIGURE 3 ).

Female. Unknown.

Biology. Unknown.

Distribution. Brazil [Amazonas, Rio de Janeiro], Peru [ Junín Region].

Remarks. O. grisea was originally described by Lopes (1982), and, so far, our knowledge of this species had been limited to the illustrations of the holotype produced by the same author ( Lopes 1982: figs 33-36). Comparing the holotype to the newly identified specimens, we observed slight differences, particularly in the pregonite, sternite 5 and vesica ( Fig. 2A–F View FIGURE 2 ). We attribute these differences to different clearing methods of the terminalia (e.g., KOH or lactic acid), as well as to the different position of the structures during the photography. Additionally, the original description did not include descriptions of the lateral and median styles. We have identified that the sclerotized plate previously interpreted as the “lateral plate” by Lopes (1982) corresponds to a sclerotized region within the vesica ( Fig. 2F View FIGURE 2 , arrow).

The holotype of O. grisea was collected in Peru, and we herein expand its distribution to the Brazilian Amazon Forest and Atlantic Rainforest biomes, both of which are Neotropical rainforests. This indicates that, up to this point, this species has only been recorded in rainforests .