Paleocene-origin
Guides
Hypoborini
Hypoborini is a tribe of small bark beetles (Curculionidae: Scolytinae) established by Nüsslin in 1912. Recent molecular and morphological revision of the Afrotropical fauna revealed substantial undescribed diversity, including three new genera and seven new species. The tribe comprises two subtribes in the Afrotropical region: Xerasiborina (Xerasiborus, Nisiborus, tentatively Glochiphorus) and Hypoborina (Dacryostactus, Styracoptinus, Afrotrypetus, Corditarsus). Related Palearctic genera Hypoborus and Liparthrum occur in Mediterranean and Macaronesian regions. Phylogenetic analyses indicate an early Palaeocene origin with ancestral area split between Asia/Africa and Madagascar, followed by single colonization of Madagascar and subsequent recolonization of the African mainland.