Trichogramma acuminatum Querino & Zucchi, 2003

Querino, Ranyse B. & Zucchi, Roberto A., 2019, Annotated checklist and illustrated key to the species of Trichogramma Westwood (Hymenoptera: Trichogrammatidae) from South America, Zootaxa 4656 (2), pp. 201-231 : 204

Trichogramma acuminatum Querino & Zucchi, 2003

Diagnosis. Dorsal lamina triangular, tapering gradually from base to apex, without basal constriction; posterior extension of dorsal lamina with pointed apex; intervolsellar process elongated, extending up to half-length of volsellae.

Comments. This species differs from T. tupinense Querino & Zucchi, 2003 , in having the anterior setae of the scutellum short and thin, and the intervolsellar process elongated. Trichogramma acuminatum presumably belongs to the Arcanum section (John D. Pinto, pers. com.). This section currently includes three North American species, characterized primarily by the appearance of the dorsal lamina, which narrows considerably in the posterior region; the lack of a distinct basal notch; and a relatively short intervolsellar process, less than half the length of the volsellae ( Pinto, 1999). Trichogramma acuminatum was collected in an electrical suction trap set in a forest reserve ( Querino & Zucchi 2003a). Only the type material is known.

Type repository. ESALQ.

Type locality. Piracicaba, SP, Brazil.

Distribution in South America. Brazil.

Host. Unknown (forest habitat).