PRATINEMA SEPSIS GEN. N., SP. N. (TYLENCHIDA, ALLANTONEMATIDAE), A PARASITE OF COPROPHILOUS FLIES OF THE GENUS SEPSIS (DIPTERA, SEPSIDAE)

Pratinema sepsis gen. n., sp. n. is described from coprophilous flies of the family Sepsidae (Sepsis punctum and Sepsis sp.). This species c an be distinguished from those in the related genus Contortylenchus by its ventrally curved female body, prominent cuticularization of the e xcretory pore and the duct in invasive females, and by the absence of bursa and a gubernaculum in free-living males. Contortylenchus species are parasites of bark beetles. The life cycle of Pratinema sepsis gen . n., sp. n. consists of a single gamogenetic population with copulati on outside of host.