Carpelimus subtilis (Erichson, 1839)†

Webster, Reginald P., Davies, Anthony E., Klimaszewski, Jan & Bourdon, Caroline, 2016, Further contributions to the staphylinid fauna of New Brunswick, Canada, and the USA, with descriptions of two new Proteinus species (Coleoptera, Staphylinidae), ZooKeys 573, pp. 31-83 : 53-54

Taxon classification Animalia Coleoptera Staphylinidae

Carpelimus subtilis (Erichson, 1839)† Figs 36-37

Material examined.

New Brunswick, Restigouche Co., Dionne Brook P.N.A., 47.9030°N, 68.3503°W, 15-27.VI.2011, M. Roy & V. Webster // Old-growth northern hardwood forest, Lindgren funnel trap (1 ♂, RWC). York Co., Keswick River at Rt. 105, 45.9938°N, 66.8344°W, 3.VI.2008, R.P. Webster // Silver maple swamp near river margin, in leaf and grass litter on mud/clay soil (2 ♂, 1 ♀ HNHM; 5 ♂, 3 ♀, 2 sex undermined, RWC); Douglas, Currie Mountain, 45.9844°N, 66.7592°W, 3-15.V.2013, C. Alderson & V. Webster // Mixed forest with Quercus rubra , Lindgren funnel trap 1 m high under Quercus rubra (1 ♂, AFC).

Distribution in Canada and Alaska.

NB, NS ( Bousquet et al. 2013). This Palaearctic species was first reported in North America by LeConte (1877), but this was a misidentification of Carpelimus pusillus (q. v.); Ulke (1902) recorded Carpelimus subtilis from DC, and Bernhauer and Schubert (1911) listed it from PA and RI, the type locality of Casey’s synonym, Carpelimus indigens .

Natural history.

Casey (1889) reported Carpelimus indigens as gregarious, on the underside of a stone in the damp bottom of a partially dry ditch. Most NB specimens were sifted from leaf and grass litter on mud/clay soil near a river margin in a silver maple swamp. Two specimens were captured in Lindgren funnel traps in an old-growth northern hardwood forest and a mixed forest. Adults were collected during April, May, and June.