Vanina Anadina Reche - Museo de La Plata, Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata
Fabiana Gallardo - Researcher CIC División Entomología, Museo de La Plata, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata. Paseo del Bosque, ۱۹۰۰ La Plata, Argentina.

The eucoiline genus Hexacola Foerster, ۱۸۶۹ is present in the Afrotropical, Neotropical, Holarctic and Ethiopian regions, as well as Oceania. In this paper, three species are reported for the first time in Argentina: Hexacola hexatoma (Hartig ۱۸۴۱), Hexacola bifarium Quinlan, ۱۹۸۶ and Hexacola bonaerensis Reche, nom. nov. proposed to replace Hexacola fuscipes (Kieffer ۱۹۰۸) by homonymy with Hexacola fuscipes (Kieffer ۱۹۰۷). Their redescriptions are provided. Species from Argentina are parasitoids of Ephydridae and Chloropidae (Diptera). New distribution data, new host records and a key for Argentinian species are provided. Photographs of diagnostic characters and georeference of locality of collections are included. The material examined is deposited in the collection of the División Entomología, Museo de La Plata (Argentina).

Figitidae, Hexacola, Argentina, redescription, new records, parasitoids