This article is about the Epigynum in spiders. For use of Epigynous in botany, see Ovary (botany).
The external anatomy of a spider, with the epigyne labeledThe internal anatomy of a spider, with the reproductive system (purple) reaching the exoskeleton at the epigyne
External genital structure of female spiders
The epigyne or epigynum is the external genital structure of female spiders. As the epigyne varies greatly in form in different species, even in closely related ones, it often provides the most distinctive characteristic for recognizing species. It consists of a small, hardened portion of the exoskeleton located on the underside of the abdomen, in front of the epigastric furrow and between the epigastric plates.[1]
^Comstock, John Henry (1920) [First published 1912]. The Spider Book. Doubleday, Page & Company. pp. 129–132.
The epigyne or epigynum is the external genital structure of female spiders. As the epigyne varies greatly in form in different species, even in closely...
pedicel (also called pedicle) book lung sac book lung stigma epigastric fold epigyne anterior spinneret posterior spinneret Legs are labelled I, II, III, IV...
L. venusta, where the abdomen has inverted V-markings. Females have an epigyne with a ventral projection that is unique in the genus. The web of juveniles...
V-shaped markings. The females show a notch at the posterior edge of the epigyne and two oval depressions in the anterior half. Menemerus semilimbatus is...
cephalothorax, the arrangement of the eyes, and the shape of the female epigyne. The generic name Tigrosa is intended to mean "fierce like a tiger", referring...
of the sacramental bread The spoon-like tip of the scape found on the epigyne of some female spiders Cochlear Limited, manufacturer of Nucleus Cochlear...
The position of the copulatory openings, in the middle of the spider's epigyne, is also distinctive. Thiratoscirtus atakpa is a species of jumping spider...
and the way that the copulatory openings are close to the rear of the epigyne on the female. Rafalus desertus is a jumping spider that was first described...
The spider has an unusually large epigyne that helps to differentiate it from other species in the genus. The epigyne is marked by two large depressions...
edge of this furrow as do the genital openings (gonopores) Epigyne or epigynum (plural epigynes): A hardened plate on the underside of the female abdomen...
identified. It has the toothless chelicerae typical of the genus. The epigyne, with its horse-shoe-shaped depression and looped seminar ducts, can help...
pear-shaped carapace and greyish beige across the abdomen. It has a smaller epigyne than others in the genus, but the copulatory organs are otherwise similar...
known as the epigastric furrow, separates the region of the book lungs and epigyne from the more posterior part of the abdomen. In the middle of this furrow...
organs are distinctive, including the existence of a deep pocket in its epigyne and its bean-shaped spermathecae. Evarcha zougoussi is a species of jumping...
copulatory organs. The female has copulatory openings towards the back of the epigyne and a projecting border at the back of the eipigynal plate. The male has...
ventral abdominal markings. The females can be distinguished by their epigyne. The variation in size, shape and markings that have been observed is not...
elaborate pattern, and, in females, the shape of the median septum of the epigyne. In males, the embolus of the pedipalp is enclosed within the conductor...
be distinguished from other members of the genus by the design of the epigyne, which is oval, and its bean-shaped spermathecae. Stenaelurillus kavango...
In Araneus, the median apophysis first hooks onto part of the female epigyne, positioned by the conductor, before inflation of the haematodocha causes...
distinct light central band, which has a wavy border. Females have an epigyne appearing 2.5 times as long as wide when viewed from the rear. Males have...
to the female's epigyne (external genitalia). The male inserts one (or even both left and right) pedipalp into the female's epigyne and injects the fertilizing...
markings. Identification is based on the precise structure of the female epigyne and the male palpal bulb. A. pubescens is native to Europe (including England...
have six eyes, and are haplogyne, i.e. the females lack a sclerotized epigyne. There is a substantial number of genera, but two of them, Dysdera and...
carapace and yellow beige abdomen that has a pattern of linesand patches. The epigyne is distinctively large and has a plate at the rear. Phintella lajuma is...
male palpal bulb and the shallow depression in the middle of the female epigyne. Asemonea stella is an African jumping spider that was first described...
median apophysis of the male bulb and the external sclerites of the female epigyne, especially the wide median septum. It is found in New Zealand. The species...
very similar to A. similis and A. fenestralis in general appearance. The epigyne is separated from that of A. fenestralis by the outlines of the spermathecaa...
Global Information
