Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Family Diapriidae

Little things on oranges: Ant? Wasp? - Coptera - female Wasp - Trichopria - female Tiny Wasp - Basalys - female Diapriidae - Aclista Possible Diapriid? - Coptera - female Belyta Diapriid - Trichopria Diapriidae? - Trichopria
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hymenoptera (Ants, Bees, Wasps and Sawflies)
No Taxon ("Parasitica" (parasitoid Apocrita))
Superfamily Diaprioidea
Family Diapriidae
Synonyms and other taxonomic changes
Formerly placed in Proctotrupoidea.
Numbers
>300 spp. in 35 genera in our area(1), estimated 4,000 spp. worldwide (of which fewer than half have been described)(2)
Identification
Body small, black, and shiny; antennae 11- to 15-segmented, rising from a facial protuberance; trochanters two-segmented; wing venation reduced or nearly absent compared to the aculeate Hymenoptera, with 2 or fewer cells enclosed by tubular veins in the forewings.
Metasoma with tergum 1 about the same length as, or shorter than, other metasomal terga, or much narrower than rest of metasoma. Head hypognathous. Pronotum in dorsal view usually more or less U-shaped. Insertion of the antennae facing upwards, on the upper surface of a "ledge" located on the frons that is best seen in lateral view. Fore wing without stigma. Antennal scape usually over 3 times as long as wide. Pronotum in lateral view usually extending posteriorly to tegula. Body rarely with metallic color. Antennal bases separated by more than its own diameter from dorsal margin of clypeus (3).
Habitat
Adults are usually found in wooded areas with decaying vegetation and fungi
Food
Larvae are typically parasites of fungus gnats and other dipterans
Works Cited
1.American Insects: A Handbook of the Insects of America North of Mexico
Ross H. Arnett. 2000. CRC Press.
2.The Diapriidae
3.Hymenoptera of the world: an identification guide to families
Goulet H., Huber J., eds. 1993. Agriculture Canada Publication 1894/E. 668 pp.