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Family Eulophidae

Goldenrod gall parasitoid fauna - female tiny wasp Ormyrus sp.? - Tetrastichus patterned abdomen - Euplectrus Chalcid parasitoid of willow-mining Phyllonorycter - Chrysocharis walleyi - male Eulophid ex Sumitrosis ex Ageratina altissima Eulophid ex Orgyia tibial spurs (and tarsus in lower left corner)
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hymenoptera (Ants, Bees, Wasps and Sawflies)
No Taxon ("Parasitica" (parasitic Apocrita))
Superfamily Chalcidoidea (Chalcid Wasps)
Family Eulophidae
Numbers
4 subfamilies with >830 spp. in ~110 genera in our area and TBA spp. in >330 genera worldwide(1) (numbers in(2) may be significantly outdated. =v=)
Identification
The 4-segmented tarsi helps distinguish this chalcid from the very similar pteromalid group. These wasps also shrivel up badly after death which is also a characteristic of this family. Most species are primary parasitoids of hidden larvae (e.g. leafmining orders such as Lepidoptera, Hymenoptera, etc.), and some are hyperparasitoids as well. The host range is very diverse. (Comment by Ross Hill).
Other features: dark metallic coloration, 4-segmented tarsi with protibial spur short and straight. Antennae with 2 to 4-segmented funicle, (i.e. antenna at most with 10 segments).
Key to nearctic genera (except Tetrastichinae) in(3)
Range
Worldwide
Internet References
http://www.sel.barc.usda.gov/hym/chalcids/Eulophid.html
http://cache.ucr.edu/~heraty/Eulophidae/