1 June 2009, 7:44 PM
Four years ago on 9 July 2005, we discovered an unusual beetle in a spider web. We supposed it to be an Elaterid or Click Beetle, but it had feathered antennae. Eventually Eric Eaton contacted an expert, Dr. Art Evans, identified it as a Euthysanius species. This was Dr. Art Evans conclusion at the time: “The following excerpt is from our upcoming field guide for CA beetle s: At least five species of Euthysanius are found in California. The males of Euthysanius lautus (15.0-19.0 mm) (Plate 111) are reddish-brown with grooved elytra and feathery, 12-segmented antennae . They are found under the bark of pines (Pinus) and are attracted to lights throughout southern California. Adult females (up to 35.0 mm) (Plate 112) have very short elytra and lack flight wings, exposing most of the abdominal segments. They are found crawling over the ground.” Well, this afternoon, we found another specimen on our screen door.
We took several images of the Click Beetle to post. When the Click Beetle is on its back, it snaps back to an upright position, but only propelling about an inch or two into the air.
The beetle is about an inch long. We are also quite impressed with the mandibles on this specimen. Though it didn’t do any damage, it tried to discourage us from handling it by biting. BugGuide identifies the genus as Arboreal Click Beetles.