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Pedipalps are a pair of "feelers" on a spider's face. Analogous organs exist on other arachnids, and share the same name. The term is often abbreviated to just palp or palpus (plural palpi). They are typically used for grabbing prey and holding it in place as the spider sinks its fangs in.
Pedipalps are also used for mating by mature male spiders. Before male spiders trek off to find a potential mate, they discharge sperm through an opening onto sperm webs (Discovery Books, 2000). Afterwards, the sperm is absorbed into spermaphors within the enlarged tips of their palps. When the male finds a mate, he inserts his palps into the females epigynum or genital opening, and the stored sperm is released (Discovery Books, 2000).
Sources
- Discovery Books; 2000; Insects and Spiders; St. Remy Media Inc.; New York; 35
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