Net-winged Beetles have raised, netted patterns on their wing cases and usually sport bright yellow and black colours. This pattern suggests that they are poisonous to would-be predators, or perhaps affords some protection in giving them the look of wasps and bees. If alarmed, they often spread their wings in a kind of threat posture. Adults are often conspicuous on foliage in woodland in late summer, while larvae feed mostly on fungi and are active in leaf litter.