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膜翅目寄生昆虫选择寄主产卵,需要视觉的、嗅觉的或化学感触的刺激物。膜翅目昆虫中的一些种,能用它们的产卵管刺戳辨认寄主,但使它们能够辨认的刺激物(大概是化学的)还不知道是什么东西。北美洲田野里的瘤姬蜂Itoplectis conqu-isitor(Say)寄生在茎梗里或卷叶内寄主茧中的蛹。实验室里的雌蜂,受人造茧(纸筒)所吸引,就用它们的触角前来检查,又用它们的产卵管在上面加以刺探。如果将鳞翅目昆虫的蛹放在这种纸筒中,它们就会向纸简里产卵(如产在大蜡螟蛹
Hymenoptera parasitic insects choose to host the spawning, need visual, olfactory or chemical sensory stimuli. Some species of Hymenoptera can identify hosts with their oviposition jabs, but it is not yet known what they can recognize as stimuli (presumably chemical). Itoplectis conqu-isitor (Say) A pupae parasitized in the stalk or in the host cocoon of the leaf roll. The female bees in the lab, attracted by artificial cocoons (paper tubes), come to check with their antennae and spy on their ovipositor tubes. If the lepidopteran pupae in this paper tube, they will lay eggs in the paper (such as the production of waxworm