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I found no common name other than the familiar name: “Longhorn Beetle.” This remarkably colored beetle is in the Prioninae, a subfamily of Cerambycidae (Long-horned beetles). True to its name, its antennae are longer than its body, This beetle was 65 mm long which is the maximum size they reach. Its defense isn’t limited to the impressive 2 cm long mandibles, the head, prothorax and leading tip of the elytra are armed with very sharp spines. The surface of its entire body appears to have an iridescent metallic purple textured appearance.
This beetle was found under a light in the Amazon rainforest of SE Ecuador (700 masl).
I almost couldn't believe my eyes when I found this beetle. Not only was it huge, but the colors were unbelievable. Little could be found of its habits or habitat, but the majority of the Prioninae whose biology is known are borers whose larvae feed on rotting wood or roots. There is an interesting video at the following link: https://www.shutterstock.com/video/clip-...
Spotted on Apr 21, 2015
Submitted on Mar 14, 2019
and 23 other people favorited this spotting