Addition of a new Steph. (Coleoptera, Staphylinidae) species to the biodiversity of Albertan mixedwood forest, Canada.

Quedius (Raphirus) spencei Jacobs and Bergeron, new species, (Coleoptera: Staphylinidae), is described based on specimens from two localities (type locality: 35 km. E Dixonville, Alberta, Canada) in the Boreal Forest. Male genitalia are illustrated, compared with congeners ( Smetana and Smetana) in the species group, and included in a slightly modified key to the species of .

Low intensity surface fire instigates movement by adults of Calosoma frigidum (Coleoptera, Carabidae).

The genus Calosoma (Coleoptera: Carabidae) is a group of large, sometimes ornate beetles, which often voraciously attack caterpillars. Many studies have reported Calosoma beetles being highly conspicuous during defoliator outbreaks. Based on observations of individual beetle behavior, patterns of activity density and phenology we provide a hypothesis on how environmental cues may synchronize Calosoma activity with periods of high defoliation.