Adelgid-predators
Guides
Derodontidae
tooth-necked fungus beetles
Derodontidae is a small family of beetles comprising 42 species in 4 genera and 3 subfamilies. Members are commonly known as tooth-necked fungus beetles due to the spiny pronotal margins found in most genera, though the genus Laricobius lacks these spines. The family is notable for possessing two ocelli on the head, an unusual trait among beetles. The genus Laricobius has gained significant attention as a biological control agent for invasive adelgids threatening hemlock forests in North America.