Minute Bark Beetles

Cerylonidae is a family of beetles in the superfamily Coccinelloidea. They are small to tiny (0.8–3 mm (0.031–0.118 in)), smooth, shiny, hairless beetles, only lightly punctured. The roughly 450 species worldwide are placed in 50 or so genera, mostly tropical and subtropical. They are most common under the bark of dead trees, but can also occur in compost and other decaying plant material. Little is known specifically about their biology, but they are thought to be either predators that feed on other small animals or fungus-feeders.