A new species of Gynacantha Rambur, 1842, from Papua New Guinea (Odonata: Aeshnidae)

摘要

Gynacantha nuda sp. nov. is described based on a male from Southern Highlands Province, Papua New Guinea. It is the largest known species of the genus to be reported from New Guinea. Characters of the adult male are illustrated, the affinities of the new species are discussed, and a key is presented to males of the Gynacantha species recorded from New Guinea.