Hawaiian Eucoilidae (Hymenoptera: Cynipoidea), Key to Genera and Taxonomic Notes on Apparently Non-Endemic Species

Abstract

A key to the genera of Eucoilidae known to occur in Hawaii is presented. All known non-endemic species are treated except those which attack larvae of Agromyzidae (Beardsley 1988) and those of the genus Kleidotoma Westwood (Beardsley in press). The following three species are described as new: Eucoila ophyrae, Hexacola neoscatellae Rhoptomeris advena. The following new combinations are proposed: Chrestosema magnifica for Pseudeucoila (Hexamocera) magnificus Yoshimoto, Didtyctium weldi for Pseudeucoila (Pseudeucoila) weldi Yoshimoto, Ganaspis ovata for Pseudeucoila ovata Yoshimoto, and Leptopilina rugipunctata for Pseudeucoila (Pseudeucoila) rugipunctata Yoshimoto. The following new synonomies are proposed: Hexacola samuelsoni Yoshimoto and Yasumatsu (1965) as a junior synonym of Micreriodes guamensis Yoshimoto (1962), and Hexaplasta konensis Ashmead (1901) as a junior synonym of Trybliographa xanthopada Ashmead (1896). The following immigrant species are reported as new to the Hawaiian fauna: Micreriodes guamensis, Eucoila ophyrae, Didyctium weldi, Hexacola neoscatellae, Leptopilina boutardi (Barbotin el al.) and Rhoptomeris advena. In addition, three as yet undetermined species assigned lo Hexacola Forster are each known from a single specimen collected on Oahu.