Megasoma gyas ( Herbst, 1785 )

Hielkema, Auke J. & Hielkema, Meindert A., 2019, An annotated checklist of the Scarabaeoidea (Insecta: Coleoptera) of the Guianas, Insecta Mundi 732 (732), pp. 1-306 : 197

Megasoma gyas ( Herbst, 1785)

Scarabaeus gyas Herbst 1785: 263

Note. Two presently recognized subspecies of Megasoma gyas have been described, one of which may occur in the research area. The other one is Megasoma gyas gyas ( Herbst, 1785) (recorded from Brazil).

Subspecies Megasoma gyas rumbucheri Fischer, 1968

Megasoma rumbucheri Fischer 1968: 137 ( Brazil)

Distribution. Guyana: Endrödi 1977b: 48, 1985a: 640, 642; Morón 2005: 30. Suriname: Endrödi 1977b: 48. Brazil: Fischer 1968: 137 (as Megasoma rumbucheri ); Endrödi 1977b: 48, 1985a: 640, 642; Lachaume 1985: 40; Morón 2005: 30; Grossi et al. 2008: 366.

Note. Endrödi (1977b: 48) records Megasoma gyas rumbucheri for Guyana and Suriname. The record for the latter country is copied in Endrödi (1985a: 640, 642) and Morón (2005: 30). However, we have not seen any specimens from these countries, and the species has never been reported from French Guiana. According to the distributional map in Grossi et al. (2008: 366), this subspecies is found in eastern Brazil, well over one thousand kilometers southeast of the research area. We consider the possible presence of this species in the research area in need of confirmation.