Epigynum as a tool for the determination of gender and maturity in Salticidae.

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Tim L. Heller
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Epigynum as a tool for the determination of gender and maturity in Salticidae.

Beitragvon Tim L. Heller » 5. Mär 2019, 09:49

The epigynum is the female copulatory organ of entelegyne Araneomorphae. Its function is to receive the male sperm provided by the embolus.

This feature of female Entelegynae is a safe way to determine their maturity, especially helpful in breeding.

Only mature females have a fully developed and sclerotized epigynum. The degree of sclerotisation is visible by the color of the cuticule. A sclerotized epigynum is black and reflective.

The epigynum is located on the ventral side of the opisthosoma in front of the epigastral furrow and between the booklungs.

(Location marked with a circle in this image.)

BildEpigynum of Hyllus diardi by Tim L. Heller, auf Flickr

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