Endecatomus
Endecatomus is a genus of beetles, the sole member of the family Endecatomidae. There are at least four described species in Endecatomus. Endecatomidae was formerly treated as a subfamily of Ciidae or Bostrichidae. They are found in the Holarctic region. Adults and larvae feed on the fruiting bodies of bracket fungus, creating bored cavities as they do so.