Two new species and new provincial records of aleocharine rove beetles from Newfoundland and Labrador, Canada (Coleoptera, Staphylinidae, Aleocharinae) Author Klimaszewski, Jan Author Langor, David W. Author Bourdon, Caroline Author Gilbert, Amelie Author Labrecque, Myriam text ZooKeys 2016 593 49 89 http://dx.doi.org/10.3897/zookeys.593.8412 journal article http://dx.doi.org/10.3897/zookeys.593.8412 1313-2970-593-49 117BB3C297874ACBAF2EF932D73DC122 117BB3C297874ACBAF2EF932D73DC122 Taxon classification Animalia Coleoptera Staphylinidae Callicerus rigidicornis (Erichson) Figs 77-83 Homalota rigidicornis Erichson 1839 : 82. As Callicerus : Assing 2001 : 286; Brunke et al. 2012 : 175. Diagnosis. There are two adventive species of Callicerus reported from Canada ( Brunke et al. 2012 ). Males of Callicerus rigidicornis do not have their antennomere X conspicuously elongate (Fig. 77) as in Callicerus obscurus (for illustration, see Brunke et al. 2012 ). Callicerus rigidicornis may be distinguished externally from Callicerus obscurus by the more transverse pronotum (Fig. 77), larger body (length 3.5-5.0 mm), and by body colouration with lighter basal half of abdomen (entirely dark brown in Callicerus obscurus ). The habitus and genital structures of Callicerus rigidicornis are illustrated in Figs 77-83. For details of European Callicerus species, see Assing (2001) . Figures 77-83. Callicerus rigidicornis (Erichson): 77 habitus in dorsal view 78 median lobe of aedeagus in lateral view 79 male tergite VIII 80 male sternite VIII 81 female tergite VIII 82 female sternite VIII 83 spermatheca. Scale bar of habitus = 1 mm; remaining scale bars = 0.2 mm. Distribution.

NLON

47.52°N , 52.785°W MUNMUN

Erichson 1839 Assing 2001 Brunke et al. 2012

Bionomics. The Newfoundland females were captured using pitfall traps in agricultural fields in 2007. In Ontario, specimens were collected in agricultural hedgerows using pitfall traps in 2009 and 2010 ( Brunke et al. 2012 ). Adults were collected in May and June. Comments. Callicerus rigidicornis was recorded from North America as an adventive species for the first time based on Ontario specimens collected in agricultural hedgerows ( Brunke et al. 2012 ). The NL record may suggest a broader distribution of this adventive species in Canada, but it is unknown whether these records represent separate introduction events. For information on natural history of this species in Europe, see Assing (2001) .