Published in Transactions of the American Entomological Society, Volume 121, Issue 4, December 1, 1995, pages 227-248. Copyright © 1995 American Entomological Society. Posted with permission. The definitive version is available at http://www.jstor.org/stable/25078597.
The thrips-attacking Eulophidae (subfamily Entedoninae) known from the Nearctic region are reviewed. One new species, Ceranisus loomansi, is described. Four other species of Ceranisus are redescribed and illustrated based mainly on a study of their type specimens as well as on additional material from Arizona, California, Hawaii, Mississippi and Japan. Lectotypes are designated for Ceranisus americensis (Girault), C. nubilipennis (Williams) and C. russelli (Crawford). A key to eight species belonging to four entedonine thrips-attacking genera is given, and host associations are indicated for those species.
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