The Find-a-Spider Guide

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Amyciaea albomaculata

Fact Box
Species:
Amyciaea albomaculata (RM)
Family:
Thomisidae
Body length:
female: 7 mm
male: 6 mm
Habitat:
This species is usually found only in the evenings when it will probably be hanging from a strand of silk in a rainforest environment where green tree ants are present. Its green and tan colour scheme closely matches that of green tree ants because it normally only lives where these ants occur and is claimed to feed almost exclusively on them
Toxicity:
Unknown but this species probably presents no significant hazard for humans
Amyciaea albomaculata
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Another specimen
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With its prey
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On support thread
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With its egg sac

Distinguishing features of this spider are its body shape and colour scheme which mimic those of a green tree-ant species that is common in Northern Australia, the two black 'false eyes' on its abdomen, two pairs of large, black lateral eyes on the spider's head, and Amyciaea's tendency to hang on a strand of silk by its fourth pair of legs with the first two pairs extended sideways ready to capture any ants that come near it. Amyciaea and the theridiid(?), 'Corinnomma', have a very similar appearance, presumably because they are both attempting to mimic the same green tree-ant species. The most useful visible differences between these two spiders are that Amyciaea has large lateral eyes whereas Corinnomma's eyes are all relatively small and there are only two black false eyes on the abdomen of Amyciaea but 'Corinnomma' has four of these. In addition 'Corinnomma' is believed to run with the green tree-ants rather than hang from a strand of silk as Amyciaea does.

Spider(s) with a very similar appearance: 'Corinnomma' species.


Email Ron Atkinson for more information.    Last updated 5 April 2013.