Canopy Ceratocanthinae (Coleoptera: Hybosoridae): A review of their diversity, with notes and hypotheses on ecology, morphology and biology

Current knowledge on the association of some genera of Ceratocanthinae (Coleoptera: Scarabaeoidea: Hybosoridae) with the canopy of forests, mainly tropical rainforests,  is reviewed with the addition of unpublished data. The taxonomic diversity is remarkable, with more than ten genera recorded to have at least some species living in the canopy of rainforests (especially in the lower layers of the canopy). Some remarks on the ecology, phenology, biology and morphological adaptations of these genera are provided. The New World genus Ceratocanthus and the Oriental genus  Eusphaeropeltis display the most striking adaptations to such a life.