They are small (2–6 mm) ovoid, usually dull-coloured beetles, with knobbed antennae. Some have red or yellow spots or bands. They feed mainly on decaying vegetable matter, over-ripe fruit, and sap. There are a few pest species.
Common species include:the picnic beetle, Glischrochilus quadrisignatus the dusky sap beetle, Carpophilus lugubris the strawberry sap beetle, Stelidota geminata the small hive beetle, Aethina tumida