Abstract
New distributional and bionomic data are provided for species of the genus Xantholinus in North America. Xantholinus elegans (Olivier 1795) (= X. jarrigei Coiffait 1956)is recorded from North America for the first time, based on specimens collected in Ontario, Canada from 2007-2010. The armature of the internal sac of the aedeagus in situ is illustrated to aid in identification. Xantholinus linearis (Olivier 1795), known previously from the Maritime Provinces of Canada and the eastern United States, is newly recorded from Ontario. Xantholinus longiventris Heer 1839 is still only known from western North America. A key is provided to allow recognition of all three species.
Highlights
The genus Xantholinus Dejean (Staphylininae: Xantholinini) is a diverse, mainly Palearctic group and contains several species that prefer open, disturbed areas, where they often dominate the staphylinid assemblage (Daccordi and Zanett 1989; Balog and Marko 2007)
Xantholinus elegans is certainly a recent accidental introduction to North America as it was not included in Smetana (1990), and the earliest specimen known is from 2007
In Europe, it prefers sandy soils and is a bivoltine species with most adults collected in spring and late summer (Daccordi and Zanetti 1989; Drugmand 1994)
Summary
The genus Xantholinus Dejean (Staphylininae: Xantholinini) is a diverse, mainly Palearctic group and contains several species that prefer open, disturbed areas, where they often dominate the staphylinid assemblage (Daccordi and Zanett 1989; Balog and Marko 2007). These habits have likely facilitated the accidental importation and Copyright A.J. Brunke, C.G. Majka.
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