My field assistant and I have found a couple of these lately. This one was very well-camouflaged on a lichen-encrusted tree trunk, but gave itself away by moving. These are the larva of certain green lacewings, family Chrysopidae
. Larvae of some groups (see BugGuide
) decorate themselves with debris, affording them camouflage and perhaps armor to protect them from predators. This is the underside, showing the larva itself.