Evidence of a chemotactic substance in the spermathecal gland of the female boll weevil (Coleoptera: Curculionidae)

The male boll weevil deposits sperm in the copulatory pouch of the female during mating. Normally, the sperm swim up the spermathecal duct and enter the spermatheca where they are stored until they are used for fertilization. The sperm exhibit a positive chemotactic response to the secretion of the...

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