Araneus identification - Araneus gemmoides

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Home » Guide » Arthropods (Arthropoda) » Chelicerates (Chelicerata) » Arachnids (Arachnida) » Spiders (Araneae) » True Spiders (Araneomorphae) » Entelegynae » Orb Weavers (Araneidae) » Araneus » Cat-Faced Spider (Araneus gemmoides)

Photo#33612

Copyright © 2005 Terry Thormin

Araneus identification - Araneus gemmoides -

Alberta, Canada

Close-up of the epigynum of Araneus gemmoides

Images of this individual: tag all

Araneus identification - Araneus gemmoides - female

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Contributed by Terry Thormin on 3 October, 2005 - 3:12pm
Last updated 30 January, 2012 - 5:36pm

Terry

could you please rotate this image 180 degrees? I would like to use it for an epigynum article.

~ Nevermind, I rotated it for you.

… Lynette Elliott, 3 October, 2010 - 2:52pm

From Rod Crawford:

This is correctly identified now. Two points make it gemmoides: 1) the
*relative* size of the epigynum. The epigyna of the 2 spp are actually
the same size but gemmoides has a much bigger abdomen so the epigynum
looks tiny by comparison. 2) In gemmoides the scape tends to be
triangular while in gemma it has a parallel-sided portion. This can
get iffy in some specimens but is clearcut in this one.

This epigynum is a good enough view to be quite diagnostic.

… Lynette Elliott, 21 September, 2009 - 8:30am

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