A new species of the genus Monopelopia from South Brazil, with keys to the Neotropieal-Nearctic species (Díptera: Chironomidae: Tanypodinae)

摘要

A new species, Monopelopia paranaense is described and illustrated, based on immatures collected in a little pond in Parana State (South Brazil) and adults reared in laboratory. Keys to males, larvae and pupae of all species of the genus Monopelopia Fittkau known in the New World are also provided. The adult males of Monopelopia can be recognized among Pentaneurini by having the apical flagellomere completely set off, R^ absent or reduced and a single tibial spur present on each leg (Murray & Fittkau1989). The forked abdominal D and L setae are diagnostic characters for the pupae (Fittkau & Murray 1986). The larva can be distinguished by having the Lauterborn organs arising like the ends of a tuning fork from second antennal segment and posterior parapod claws with strong teeth on inner margin (Fittkau & Roback 1983).