Neotropical Entomology (2003) 32, 507-509

Eduardo B. Beserra, Ranyse B. Querino and José R.P. Parra (2003)
Ocorrência de Ginandromorfismo em Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae)
[Occurrence of gynandromorphism in Trichogramma pretiosum Riley (Hymenoptera: Trichogrannnatidae)]
Neotropical Entomology 32 (3), 507-509
Abstract: Egg parasitoids of genus Trichogramma can reproduce by arrhenotokous or thelytokous parthenogenesis. Thelytoky is genetically determined or induced by endosymbionts such as bacteria of the genus Wolbachia. In thelytokous Trichogramma populations, gynandromorphism - an individual having both male and female structures - can occur. Gynandromorphism was observed in one specimen of Trichogramma pretiosum Riley in which the individual presented female genitalia and male antennae, a fact never reported before in Trichogramma in Latin America.
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(original language: Portuguese)
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Database assignments for author(s): Eduardo B. Beserra

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
Trichogramma pretiosum (parasitoid)