New genus and new species of Chauliodinae (Insecta: Megaloptera: Corydalidae) from Brazil.

A new genus and new species of Chauliodinae are described and illustrated, Puri gen. nov. and P. aleca sp. nov. The material was collected in the Mantiqueira Mountain Range, Itamonte Municipality, State of Minas Gerais, Brazil. This is the first report of adults of this subfamily from Brazil. In the male, the new genus is diagnosed by the short subserrate antennae, length less than ½ of forewing; wings alternating dark and pale venation; forewings with crossvein between 1A and 2A placed between footstalks of 1A and 2A; hindwings with basal r-m crossvein connected to M by an additional short branch; dorsally, ninth tergum anteriorly truncate; laterally, ventral margin acutely produced; ninth sternum with membranous apical process; laterally tenth tergum with proximal margin vertical; tenth gonocoxite with bifurcation indistinct; lateral lobes connected by a broad and feebly sclerotized plate. The female is unknown.