A new genus and species of Coenosiini from Costa Rica (Diptera, Muscidae, Coenosiinae)

Palpilongus gen. n. is herein described for one species – P. bifurcus sp. n., from Costa Rica, based on male and females. The striking morphological characters of the species – palpus very long, about as long as prementum; upper calypter truncate and very short and setae of male sternite 5 bifurcated, confirm that this new species is also a new genus in the tribe Coenosiini. Male and female terminalia were dissected and illustrated.