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

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National Moth Week was July 19-27, and the Summer 2025 gathering in Louisiana, July 19-27

Photos of insects and people from the 2024 BugGuide gathering in Idaho July 24-27

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Family Eurytomidae

Representative Images

Emerged from hairy gall on Canyon Live Oak, Quercus chrysolepis - Sycophila Small wasp - Tetramesa Eucalyptus wasp - Sycophila Chalcidoid - Sycophila? - Sycophila Oak Gall Inhabitant - Eurytoma - female Eurytomid - male Eurytomid Wasp? Chalcid wasp?

Classification

Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hymenoptera (Ants, Bees, Wasps and Sawflies)
No Taxon ("Parasitica" - Parasitoid Wasps)
Superfamily Chalcidoidea (Chalcidoid Wasps)
Family Eurytomidae

Synonyms and other taxonomic changes

treated as a subfamily of Pteromalidae in some classifications
Epichrysomallinae recently transferred to Pteromalidae(1)

Explanation of Names

Eurytomidae Walker 1832

Numbers

3 subfamilies, with >280 spp. (of which ~130 in Eurytoma) in ~20 genera in our area and >1400 spp. in ~90 genera worldwide(2)

Identification

Similar to Perilampids but more slender. Usually black, with thorax, head and antennae rather hairy.
genera reviewed in (3)

Food

Some are parasitic, others phytophagous. Almost all parasitic species feed on hosts confined to galls, stems, seeds or other protected plant parts. Some are secondary parasites.(4)(5)

Internet References

taxon profile

Works Cited

1.A phylogenetic analysis of the megadiverse Chalcidoidea (Hymenoptera)
Heraty J.M., Burks R.A., Cruaud A., Gibson G.A.P., Liljeblad J., Munro J., Rasplus J.-Y., Delvare G., Janšta P., Gumovsky A.... 2013. Cladistics 29: 466–542.
2.Universal Chalcidoidea Database
3.A Synopsis of the Genera of the Family Eurytomidae (Hymenoptera: Chalcidoidea)
Burks BD. 1971. Transactions of the American Entomological Society Vol. 97, No. 1: 1-89.
4.Borror and DeLong's Introduction to the Study of Insects
Norman F. Johnson, Charles A. Triplehorn. 2004. Brooks Cole.
5.A handbook of the families of Nearctic Chalcidoidea (Hymenoptera). 2nd Edition
Grissell E.E., Schauff M. E. 1997. Ent. Soc. Wash. 87pp.
Contributed by tom murray on 15 June, 2006 - 9:05pm
Additional contributions by Beatriz Moisset, v belov, Arturo Santos
Last updated 10 October, 2023 - 5:56pm

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