Taxon classification Animalia Coleoptera Staphylinidae

Atheta (Dimetrota) campbelli (Lohse, 1990) Figs 88-95

Atheta (Dimetrota) campbelli (For diagnosis, see Lohse et al. 1990, Klimaszewski et al. 2011)

Material examined.

New Brunswick, Carleton Co., Jackson Falls, 46.2216°N, 67.7231°W, 8.V.2013, 31.V.2013, R.P. Webster // Meadow/hayfield, in dung in entrance to burrow of Marmota monax (5 ♂, 6 ♀, RWC; 1 ♀, NBM). Kent Co., Kouchibouguac N.P., S. Kouchibouguac Campground, 46.8279°N, 64.9397°W, 21.V.2015, R.P. Webster // Margin field/Jack pine forest, in litter in entrance to Marmota monax burrow (1 ♂, NBM). York Co., Keswick Ridge, 45.9962°N, 66.8781°W, 25.V.2015, R.P. Webster // Margin field/hardwood forest, in litter in entrance to Marmota monax burrow (1 ♂, RWC).

Natural history.

Specimens from NB were found in dung and litter at the entrance of a woodchuck burrow in a meadow, jack pine forest adjacent to a field, and a hardwood forest adjacent to a meadow. In NF, adults were captured in unbaited and carrion-baited pitfall traps in balsam fir forests and in rotting mushrooms in a mixed forest (Klimaszewski et al. 2011). In ON, it was collected in a hedgerow (Brunke et al. 2012). Lohse et al. (1990) reported the species from bear and caribou dung. Adults were collected during May in NB and June to August elsewhere (Klimaszewski et al. 2011, Lohse et al. 1990).

Distribution in Canada and Alaska.

AK, YT, ON, NB, LB, NF (Lohse et al. 1990; Klimaszewski et al. 2011; Brunke et al. 2012; Bousquet et al. 2013).