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Mesquite Giant Beetle

Thasus neocalifornicus


Giant Mesquite Bug nymphs are striped red and white and have plump, red and black legs, bluish wing-stubs, and large, red and black antennae.


Sonoran Desert, clusters of large, strange-looking, red and white bugs are spotted on the foliage of mesquite trees.


The bright, conspicuous colors of the Giant Mesquite Bug nymphs are a form of aposematic coloration meant to warn potential predators that they are not good to eat. If bothered, the flightless nymphs will produce a stinky secretion to repel predators not already warned off by their bright colors.

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Spotted by

Arizona, USA

Spotted on Jul 2, 2011
Submitted on Jun 23, 2012

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