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Thursday, 10 April 2025

4-4-2025 WALLAWWA LODGE, SRI LANKA - RED WEAVER ANT MIMICKING SPIDER (Myrmaplata plataleoides)


Myrmaplata plataleoides, also called the red weaver-ant mimicking jumper, is a jumping spider that mimics the Asian weaver ant (Oecophylla smaragdina) in morphology and behaviour. This species is found in India, Sri Lanka, China and many parts of Southeast Asia.

Unlike the weaver ants, M. plataleoides does not bite people, and indeed seems rather timid.

Myrmaplata plataleoides, especially the females, mimic weaver ants in size, shape and colour. The body of M. plataleoides appears like an ant, which has three body segments and six legs, by having constrictions on the cephalothorax and abdomen. This creates the illusion of having a distinct head, thorax and gaster of the weaver ant, complete with a long and slender waist. The large compound eyes of the weaver ant are mimicked by two black patches on the head. The female's front legs resemble the feelers of weaver ants, while the males resemble a larger ant carrying a smaller one. The early instars differ vastly from the adults. Although they are not known to associate with these ants, they have been reported to resemble either the tropical fire ant Solenopsis geminata, or the yellow crazy ant Anoplolepis gracilipes. However, by the fifth instar, they resemble their usual model mimic, Oecophylla smaragdina workers in both the size and coloration.