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For Insects, Spiders & Their Kin
For the United States & Canada
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Family Platygastridae

Platygastridae? - Trissolcus Diapriidae Diapriidae - Scelio - female Hyemnoptera - Diapriidae ? - Inostemma Platygastrid ex Contarinia cerasiserotinae Wasp with growth? - Inostemma - female Wasp - Macroteleia Wasp
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 Platygastroidea
Family Platygastridae
Synonyms and other taxonomic changes
Platygasteridae, Scelionidae
Subfamilies Scelioninae, Teleasinae, and Telenominae used to be treated in a separate family, Scelionidae
Numbers
almost 500 spp. in ~55 genera in our area, arranged in 6 subfamilies(1)
Size
0.45-4 mm(1)
Food
egg parasites; hosts include insects of at least 7 orders
Remarks
The mothering wasps often do stay with the parasitized eggs until they are emergent, mostly to keep other egg parasites away. They can be very common at the end of summer when egg numbers are at a peak. (Comment by Herschel Raney).
Some species are very host specific, others parasitize a wide range of hosts. Many species are used to control important pests, such as gypsy moth (Lymantria dispar), migratory locust (Locusta migratoria), Eurygaster integriceps, kissing bugs (Triatominae), and horse flies (Tabanus)
Print References
Murphy N.P., Carey D., Castro L., Dowton M., Austin A.D. (2007) Phylogeny of the platygastroid wasps (Hymenoptera) based on sequences from the 18S rRNA , 28S rRNA and CO1 genes: implications for classification and the evolution of host relationships. Biological Journal of the Linnean Society 91: 653-669.