What it looks like: 1.9-2.3 mm in length. It's body is wide near the head and narrow at the tip of the abdomen. It is yellowish-brown with very short elytra and clubbed antennae.

Where you'll find it: These beetles are a common western species ranging from Washington to California. They can be found along the coast, in the Sierras, and in the Central Valley.

Natural History: They appear under pine and oak bark and rotting forest detritus and have even been found in wood rats' nests.