Lis, MagdalenaSajnaga, EwaSkowronek, MarcinWiater, AdrianRachwał, KamilaKazimierczak, Waldemar2022-03-212022-03-212021-05-21"Journal of Nematology", 2021, Vol. 53, s. 1-240022-300Xhttp://hdl.handle.net/20.500.12153/2830A new species of entomopathogenic nematodes, Steinernema sandneri n. sp., was recovered by baiting from Poland. Its morphological traits indicate that the new species is a member of the feltiae-kraussei group. A body length of 843 (708-965) μm., a more anterior position of excretory pore (56 μm), and the lower D% value (40 vs. >46) discriminate this species from most of the other group members. The first-generation males of S. sandneri n. sp. can be distinguished from the other clade members by a 60 μm long spicule, a relatively long gubernaculum (GS%=79), and the position of the excretory pore (80 μm). Phylogenetic analysis of the ITS rDNA, D2D3 of 28S rDNA, and cox1 sequences confirmed that S. sandneri n. sp. is a new species of the feltiae-kraussei group, closely related to S. kraussei and S. silvaticum.enAttribution 4.0 International (CC-BY 4.0)https://creativecommons.org/licenses/by/4.0/18S rRNAD2-D3 domainsdescriptionentomopathogenic nematodesITSmitochondrial cox1morphologymorphometricsphylogenySteinernema sandneritaxonomydomeny D2-D3opisnicienie entomopatogenicznemitochondrialny cox1morfologiamorfometriafilogenezaSteinernema sandneritaksonomiainfo:eu-repo/semantics/article10.21307/jofnem-2021-051