Taxon classification Animalia Coleoptera Staphylinidae

Olophrum boreale (Paykull, 1792)*

Material examined.

New Brunswick, Restigouche Co., Kedgwick Rd. at Fog Brook, 47.8367°N, 67.8739°W, 21.VI.2011, R.P. Webster & M. Turgeon // Carex marsh with brook, treading emergent Carex into water (1 sex undetermined, RWC); Summit Lake, 47.7825°N, 68.3199°W, 7.VI.2011, R.P. Webster // Lake margin, Carex marsh, treading Carex hummocks and emergent vegetation (1 sex undetermined, RWC). Ontario, Moosonee, 51.24690°N, 80.68102°W [at sewage lagoon] Rep. 3 mesic, yellow pan 23-26.VI.2010, NBP field party, M3MY331 (1, CNC).

Distribution in Canada and Alaska.

AK, YT, NT, BC, AB, SK, MB, ON, QC, NB (Bousquet et al. 2013). This species is newly recorded from ON and NB.

Natural history.

Specimens were collected during June by treading emergent Carex into water in a Carex marsh along a lake margin and in a Carex marsh near a small stream. The specimen from ON was captured in a yellow pan trap near a sewage lagoon in June. Campbell (1983) reported this species from similar habitats elsewhere in its range.