Placusa vaga Casey

Klimaszewski, Jan, Langor, David W., Hammond, H. E. James & Bourdon, Caroline, 2016, A new species of Anomognathus and new Canadian and provincial records of aleocharine rove beetles from Alberta, Canada (Coleoptera, Staphylinidae, Aleocharinae), ZooKeys 581, pp. 141-164 : 152-153

Taxon classification Animalia Coleoptera Staphylinidae

Placusa vaga Casey Figs 52-59

Placusa vaga Casey 1911: 189, Klimaszewski et al. 2001: 27; Bousquet et al. 2013: 123.

Diagnosis.

This species is easily distinguishable from other Nearctic Placusa by its uniformly black to rarely dark brown body, long elytra (Fig. 52), and the shape of the genital structures (Figs 53-59). For a detailed description, see Klimaszewski et al. (2001).

Distribution.

Natural history.

Very little is known about the life history of this species. Adults in Quebec were captured in coniferous forests and mainly trapped in Lingren funnel traps ( Klimaszewski et al. 2001). The Alberta specimens were captured in a window- traps attached to aspen snag in boreal aspen stands burned two years previously. Adults were collected in Alberta in August and elsewhere in June and August ( Seevers 1951).

Comments.

This species is likely continuously distributed from Nova Scotia to British Columbia in northern boreal forest.