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For Insects, Spiders & Their Kin
For the United States & Canada
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Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

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Species Trissolcus euschisti

parasitic wasp - Trissolcus euschisti - female parasitic wasp - Trissolcus euschisti - female Platygastrid guarding Podisus eggs - Trissolcus euschisti - female Platygastrid guarding Podisus eggs - Trissolcus euschisti - female Stinkbug egg parasitoids. 8/25/12 - Trissolcus euschisti - female Trissolcus euschisti guarding Piezodorus guildinii eggs - Trissolcus euschisti - female Nezara viridula eggs - Trissolcus euschisti
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
Subfamily Telenominae
Genus Trissolcus
No Taxon (flavipes species group)
Species euschisti (Trissolcus euschisti)
Synonyms and other taxonomic changes
Telenomus euschristus Ashmead, 1888
Telenomus euschisti Ashmead, 1893
Explanation of Names
Trissolcus euschisti (Ashmead)
named after the pentatomid genus Euschistus
Parasitizes eggs of stink bugs, including the brown stink bug (Euschistus servus, green stink bug (Chinavia hilaris), and two-spotted stink bug (Perillus bioculatus). (1)
"The species in the picture is a female Trissolcus euschisti, a fairly common species in the U.S., Canada, and extending south into Mexico and Central America. They are egg parasitoids of stink bugs and related groups: they lay their egg inside the egg of the stink bug. The wasp larva that hatches then feeds on the contents of the egg, pupates inside of it, and then chews its way out as an adult. A female wasp often will stay with the host egg mass after she's parasitized every stink bug egg. She'll chase away any other parasitic wasps that might come to investigate the mass. They're usually pretty calm when they're guarding the egg mass, and it takes quite a bit of disturbance to get them to fly away." (Norm Johnson, pers. comm.)
Works Cited
1.Catalog of Hymenoptera in America North of Mexico
Karl V. Krombein, Paul D. Hurd, Jr., David R. Smith, and B. D. Burks. 1979. Smithsonian Institution Press.