Redescription of Longidorus poessneckensis Altherr, 1974 (Nematoda : Dorylaimida)

Longidorus poessneckensis Altherr, 1974, originally described from specimen s from Thuringia, Germany, was recently discovered at several sites in the central part of Germany, and at one site in Slovakia. On the basis of this material the species is redescribed, including all four juvenile stages. Ma les were not found. Longidorus poessneckensis is most similar to L. macroso ma, from which it differs by the shape of the lip region, cuticle structure on the tail end, shape of the J1 tail and absence of males. The species ap pears to prefer wet soil in forests and river flood-plains.