Passalidae (Coleoptera, Scarabaeoidea) from the Caribbean coast of Colombia: synopsis, key, and new species description.

Bess beetles (Passalidae) are a subsocial family of Coleoptera with approximately 1000 known species of saproxylophagous diet and pantropical distribution, with few extratropical species. Because of their high levels of endemism (especially in mountains), feeding habits, and complex subsociability; Passalidae is considered an excellent biological subject for taxonomic, biogeographical, and evolutionary studies. Colombia is the richest country with more than 118 recorded species of Passalidae, most of the species being related to humid and mountain areas.