Анотація:
Parasitic larvae of Parasitorhabditis fuchsi sp. n. are found in the Blastophagus minor H a r t i g. body cavity. The availability of two morphologically different generations of this species — parasitic and free-living one is established. Ontogenetic form formation and morphological variability of the new Nematoda species are studied. The description and drawings of the found Nematoda are given.