Eyed click beetle, Alaus oculatus (Linnaeus) (Elateridae)

By Hunter Weaver

Eyed click beetle, Alaus oculatus (Linnaeus). © 2012, A.V. Evans.

The eyed click beetle, Alaus oculatus (Linneaus) (24-44 mm) has two large eye-spots on the pronotum. Adults on their backs make a “clicking” noise as they flip-up into the air to right themselves or get out of harm’s way. They are active on summer days in forests and prey upon wood-boring beetle larvae in decomposing trees. The predaceous larvae are found in decaying stumps and logs where they prey on beetle larvae. This species is found throughout Virginia and is widespread in eastern North America.

References

Evans, A.V., 2007. National Wildlife Federation Field Guide to Insects & Spiders of North America. Sterling Publishing Co., New York, NY.

Wells, Sam. The Sam Wells Bug Page. The Eyed Click Beetles of the United States and Canada (Coleoptera: Elateridae).(accessed 21 June 2012).

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