Another species commonly found while peeling bark is the brightly colored Cucujus clavipes. Its flattened body is adapted for life in the tight space under loose bark. They are thought to feed on mites and small insects but relatively little is known about their biology otherwise.
The larvae of C. clavipes are similarly flattened, though not as vividly colored, are instead a light shade of orange.
Any collector of insects or similar fauna is familiar with the thrill of coming across a new or rare find – even old familiar species on occasion. Few beetles which reside under bark rarely provoke such a visceral reaction, but something about the loud color and unusual shape of C. clavipes always elicits that sudden jolt of excitement, particularly in the often bleak winter months.
Additionally, here is an interesting article on the freezing tolerance of Cucujus clavipes