thyridial
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thyridial — thy·rid·i·al … English syllables
thyridium — n; pl. ia [Gr. dim. thyris, window] (ARTHROPODA: Insecta) 1. A small whitish spot in the wings of Neuroptera, Hymenoptera and Trichoptera. 2. In ichneumonid Hymenoptera, a scar like area on each side of the second abdominal tergite, between the… … Dictionary of invertebrate zoology
