Annotated checklist and illustrated key to the species of Trichogramma Westwood (Hymenoptera: Trichogrammatidae) from South America Author Querino, Ranyse B. Author Zucchi, Roberto A. text Zootaxa 2019 2019-08-14 4656 2 201 231 journal article 26026 10.11646/zootaxa.4656.2.1 1108d0b7-f5aa-4c73-9598-7f80ae398886 1175-5326 3368097 3BCA5814-1747-4936-B36E-30E3D6016178 Trichogramma pusillum Querino & Zucchi, 2003 Diagnosis . Genital capsule small; dorsal lamina with broad posterior extension; intervolsellar process extremely minute. Comments . Trichogramma pusillum resembles T. bennetti , a Colombian species, but it differs by the short intervolsellar process, shorter flagelliform setae, unmodified volsellae, narrower genital capsule, and short ventral ridge with an indistinct anterior extremity. The most conspicuous character to distinguish them are the volsellae, which are distinctly lobate in T. bennetti . Trichogramma pusillum was collected in an electrical suction trap set in a forest reserve ( Querino & Zucchi 2003a ). Only the type material is known. Type repository . ESALQ (holotype) and University of California, Riverside. Type locality . Piracicaba, SP. Distribution in South America . Brazil. Host . Unknown (forest habitat).