Generic revision of the tribe Nanosellini (Coleoptera : Ptiliidae : Ptiliinae)

A redefinition and phylogenetic analysis of the tribe Nanosellini Barber 1924 is presented, including 12 previously described genera ( Baranowskiella, Cylindrosella, Hydnosella, Isolumpia, Nanosella, Nellosana, Mikado, Paratuposa, Porophila, Suterina, Throscidium, Throscoptilium) and 14 new genera (Cylindroselloides, Fijisella, Fijiselloides, Garicaphila, Limulosella, Nellosanoides, Nepalumpia, Phililumpia, Scydosella, Scydoselloides, Tasmangarica, Throscoptiloides, Throscosana, Vitusella). Type species are listed for each genus, including 14 new species or combinations: Cylindroides dybasi, Fijisella vituensis, Fijiselloides nandaivatuensis, Garicaphila pilosa, Limulosella waspucensis, Nellosanoides thayerae, Nepalumpia markusi, Phililumpia werneri, Scydosella musawasensis, Scydoselloides alajuelaensis, Tasmangarica chisholmi, Throscoptiloides norcoensis, Throscosana pecki, Vitusella fijiensis. New genus level combinations are presented: Philagarica new synonym of Mikado; Mycophagus new synonym of Nanosella. At the species level, Ptilum fungi LeConte is proposed as a new synonym for Nanosella fungi Motschulsky. Key characters used in the morphological analysis are illustrated. Phylogenetic reconstructions are presented based on parsimony analyses. Possible evolutionary relationships within Nanosellini are discussed.