The vagina of a jumping spider. It is a hardened plate on the underside of her abdomen, up near her waist, into which the males put sperm using their palpi. The male places his palpi near the epigynum, it swells up, enters, and then just fires away like this: doo doo do dodododododo dooo. It's also used for identification of the spider's sex.

Log in or registerto write something here or to contact authors.