Messatoporus opacus Santos 2013

Aguiar, Alexandre P., Supeleto, Fernanda A., Mendonça Jr, Milton S. & Negrello, Henrique, 2024, New Species, Host Record, and Male Discovery for Three Messatoporus Cushman (Hymenoptera, Ichneumonidae, Cryptinae) from Brazil, Zootaxa 5471 (1), pp. 83-98 : 94-95

Messatoporus opacus Santos 2013

( Figs 15–16 )

Messatoporus opacus Santos, 2013 in Santos & Aguiar (2013:161). Holotype ♀ at UFES (examined).

Variation (Female). Fore wing 6.50–8.50 mm long. Antenna with 24–28 flagellomeres. Other than that, the studied female specimens show little new variation relative to the type material: the dark areas on the mesosoma are generally lighter and mixed with some orange or brown, and the metapleuron is more uniformly orange or brown.

Male ( Figs 15–16 ). Generally similar to female, differing mostly due to typical secondary sexual differences, namely white band of antennae mostly on f11–19, taking also tip of f10; orbital band clearly interrupted dorso-posteriorly; mesosoma with dark areas generally much darker and less variegated with brown and orange than in the corresponding females, therefore more similar to the females of the type material; postscutellum entirely dark brown; T2–8 with narrow apical yellow stripes. Fore wing 8.00 mm (vs. 6.50–8.50); antennae with 28 flagellomeres.

Comments. Previously known from five females.

Biology. Reared from a few nests of Auplopus subaurarius ( Pompilidae ), from where emerged, predominantly, specimens of M. bisignatus sp. nov.

Material examined. Total of 6 specimens, 5♀♀, 1♂. Non-type : BRAZIL, 1♀, RS, Porto Alegre , Morro Santana ,?, Secondary Atlantic Forest, 30°03’57.144”S, 51°07’39.180”W, 128m, 2022-12-06, H.Negrello, Trap nest, T.017.3, ex. Auplopus subaurarius [ Pompilidae ], 2?, UFES • 7ib, 30°03’59.010”S, 51°07’39.318”W, 126m, 2022-12-19, 2ib, T.059.2, 3ib, UFRGS • 13ib, T.059.3, 4ib • 7ib, 30°03’58.170”S, 51°07’38.214”W, 123m, 2023- 01-04, 2ib, T.156.2, 3ib, UFES • 4ib, Parque Natural Morro do Osso, 2ib, 30°07’03.229”S, 51°14’05.990”W, 101m, 2022-12-27, 2ib, T.088.11, 4ib • ib, 1♂, 11ib, T.088.13, ib, first described male, 2ib .

Distribution. Brazil (ES, MG, RSNewRecord)

Figures

FIGURES 15–16. Messatoporus opacus Santos, 2013. Male T.088.13. 15, Habitus. 16, Body, dorsal. Scale = 1 mm.