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For Insects, Spiders & Their Kin
For the United States & Canada
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Upcoming Events

See Moth submissions from National Moth Week 2023

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

Photos of insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Previous events


Genus Trichogramma

Trichogrammatid from alderfly egg - Trichogramma - female Are these wasps? Trichogrammatidae? - Trichogramma Trichogrammatid - Trichogramma - male Trichogrammatid - Trichogramma - female Trichogrammatid - Trichogramma - female Wasp - Trichogramma Trichogramma sp. - Trichogramma - female parasitic wasp? - Trichogramma
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 Trichogrammatidae
Genus Trichogramma
66 spp. in our area, >220 worldwide(1)
Endoparasitoids of insect eggs. Over 200 species of moths. Among them some pests: the rice and corn stem borer, cabbageworm, tomato hornworm,Heliotis and Helicoverpa species, codling moth, cutworm, armyworm, webworm, cabbage looper, fruit worms, and sugarcane borer.
Life Cycle
Female examines the host's eggs by antennal drumming. Then perforates them with her ovipositor and lays an egg. She usually stays on or near the host eggs
member of the subfam. Trichogrammatinae that includes ~80 spp. in 13 genera in our area and TBA spp. in ~40 genera worldwide(1)
Trichogramma ostriniae has been introduced as a biocontrol of Asian corn borer, Ostrinia furnacalis.
Trichogramma evanescens has been introduced as biocontrol of the cabbage butterfly Pieris rapae.
Internet References