Oscheius tipulae is a species of nematodes, described in association of the leatherjacket, the larva of Tipula paludosa.
O. tipulae is a satellite developmental genetic model organism used to study vulva formation.[1] It is an androdioecious species characterized by the coexistence of males and hermaphrodites.
Oscheius tipulae - WormBook - NCBI Bookshelfin Section Nematodes other than C. elegans - Marie-Anne Félix, Robin B. Gasser and David Bird, eds.