Cupedidae is a small family of beetles, notable for the square pattern of "windows" on their elytra (hard forewings), which gives the family their common name of reticulated beetles.
The family consists of about 30 species in nine genera, with a Pangean (worldwide) distribution. Many more extinct species are known, dating as far back as the Triassic.
These beetles tend to be elongate with a parallel-sided body, ranging in length from 10 to 20 millimeters, with colors brownish, blackish, or gray. The larvae are wood-borers, typically living in fungus-infested wood, and sometimes found in wood construction.