Proteinus acadiensis Klimaszewski, 2005

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 : 34-36

Taxon classification Animalia Coleoptera Staphylinidae

Proteinus acadiensis Klimaszewski, 2005

Comments.

Originally described from NB, and later reported from a yellow birch ( Betula alleghaniensis Britt.) forest in QC by Klimaszewski et al. (2007), an examination of RWC and CNC material revealed additional specimens from NB, as well as from across Canada and the northeastern United States.

Material examined.

Canada, Alberta, Twp 25, Rge 3, W 5 Mer, 13.VII.1998, B.F. & J.L. Carr, Lot 1, pitfall traps baited with dead shrew (1 ♂, CNC); Twp 26, Rge 5, W 5 Mer, 10.VII.1980, B.F. & J.L. Carr, Lot 1, baited pitfall traps north end of slough (2 ♂, CNC); Twp 28, Rge 5, w 5 Mer, 3.VIII.1979, B.F. & J.L. Carr, Lot 3 (1 ♂, CNC); Twp 86, Rge 3, W 6 Mer, 29.VII.1989, B.F. & J.L. Carr, Lot 3, large beaver pond below dam on Montagneuse Lake outlet (1 ♂, CNC); Waterton Lakes National Park, 22.VII.1980, D.E. Bright, pantrap (1 ♂, CNC). British Columbia, Peachland, 17.VIII.1919, J.B. Wallis (1 ♂, 2 ♀, CNC); Yoho National Park, Amiskwi River [near junction of Kiwetinok River], 6000', 7.VIII.1971, J.M. & B.A. Campbell (1 ♂, 1 ♀, CNC). Manitoba, 1 km north of Onanole, 29.VIII.1979, S.J. Miller, berlese ex mushrooms, aspen woods (1 ♂, CNC); Riding Mountain National Park [RMNP], 6 km E of Clear Lake, 24.VIII.1979, D.B. Lyons, ex agaric mushrooms (7 ♂, CNC); RMNP, Jet Trail, 21.VIII.1979, D.B. Lyons, ex agaric mushroom (1 ♂, CNC); RMNP, Katherine Lake, 13.VI.1979, D.B. Lyons, ex Russula sp. (5 ♂, CNC); RMNP, Moon Lake, 21.VIII.1979, S.J. Miller, berlese ex mushrooms (6 ♂, CNC); same data except berlese litter under Acer negundo (1 ♂, CNC); RMNP, near refuse pit, 16.VIII.1979, S.J. Miller, berlese ex moose dung (7 ♂, CNC). New Brunswick, Albert Co., Caledonia Gorge P.N.A. [Protected Natural Area], 45.7941°N, 64.7736°W, 13.IX.2011, R.P. Webster // near Crooked Creek, mixed forest (red spruce & yellow birch), in decaying gilled mushrooms (1 ♂, RWC). [Kent Co.], Kouchibouguac Nat. Park [KNP], 29.VIII.1977, G.A. Calderwood, 5902Z (2 sex undetermined, CNC); same data but 5944P (1 sex undetermined, CNC); KNP, 17.IX.1977, J.M. Campbell, 5976V (48 sex undetermined, CNC); same data but 5975U (1 sex undetermined, CNC); KNP, 21.IX.1977, Campbell & Smetana, 6014H (9 ♂, CNC); same data but S.J. Miller, 6018L (1 sex undetermined, CNC). Queens Co., Cranberry Lake P.N.A., 46.1125°N, 65.6075°W, 22.IX.2009, R.P. Webster, coll. // Red oak forest, in decaying gilled mushrooms (7 ♂, RWC). Restigouche Co. Gounamitz Rd., near Gounamitz R., 47.6102°N, 67.7902°W, 15.X.2013, R.P. Webster // Old spruce & balsam fir forest, in rotting Tricholoma sp. (1 ♂, RWC). Sunbury Co., Acadia Research Forest, 45.9799°N, 66.3394°W, 18.IX.2007, R.P. Webster, coll. // Road 7 Control, mature red spruce & red maple forest, in gilled mushroom (1 ♂, RWC). Nova Scotia, Cape Breton Highlands Nat. Park [CBHNP], Aspy River trail, 90 m, PG795856, 23.IX.1984, J.M. Campbell & A. Davies,, ex mushrooms on tree stumps (1 ♀, CNC); CBHNP, Lone Shieling, PG729861, 75 m, 19.IX.1984, J.M. Campbell & A. Davies, ex mushrooms (2 ♀, CNC); CBHNP, Pleasant Bay, 25 m, PG682872, 14.IX.1984, J.M. Campbell & A. Davies, sifting litter & moss (13 sex undetermined, CNC); same data but 21.IX.1984, sifting alder litter (3 sex undetermined, CNC); same data but ex mushrooms (21 sex undetermined, CNC). Ontario, Constance Bay, X.1970, S. Peck (1 ♂, 4 ♀, CNC); 7 km S Westport, Chaffeys Locks Biol. Station, 44°34'08N, 76°19'15W, 23.X.1985, A. Davies, alder-birch litter at edge of marsh (2 ♂, CNC); same data except ex mushrooms in birch litter (4 ♂, CNC); same data except 26.IX.1986, J.M. Campbell & A. Davies, ex Boletus mushrooms (2 ♂, 8 ♀, CNC); same data except 3.X.1986, A. Davies & L. Dumouchel, ex mushrooms (1 ♂, 4 ♀, CNC). Quebec, Gatineau Park, Pinks Lake, 45.4684'N 75.8117'W, A. Davies, 24.IX.1982, berlese mushrooms (1 ♂, 2 ♀, CNC). USA, Maine, Kennebec Co., Belgrade, 44.474°N, 69.835°W, 17.XII.1983, R.E. Nelson, mixed duff and moss (1 ♂, CNC). New Hampshire, Carroll Co., 6 mi NW Bartlett, Nancy Brook Trail, 1500', 9.IX.1987, A. Davies & Y. Bousquet, ex Russula mushrooms (6 ♂, 4 ♀, CNC); same data except A. Davies, sifting litter and frass in tree holes (1 ♂, CNC). Coos Co., 2 mi NE Crawford Depot, 2100', 13.IX.1987, J.M. Campbell & A. Davies, ex mass of mushrooms on large stump (2 ♂, 2 ♀, CNC); 17 km S Gorham, Glen Ellis Falls, 1900', 8.IX.1987, J.M. Campbell & A. Davies, sifting litter by stream (9 ♂, 8 ♀, CNC).

Distribution in Canada and Alaska.

BC, AB, MB, ON, QC, NB, NS ( Klimaszewski et al. 2005, Klimaszewski et al. 2007). In Canada, Proteinus acadiensis is newly recorded from BC, AB, ON, and NS and is reported for the first time for the USA from ME and NH. This species is transcontinental in Canada.

Natural history.

In NB, specimens were collected from decaying gilled mushrooms and rotting Tricholoma sp. mushroom in a red oak forest, in mixed forests, and an old spruce ( Picea ) & balsam fir ( Abies balsmea (L.) Mill.) forest. Elsewhere, specimens were found in Boletus mushrooms, agaric mushrooms, Russula sp. mushrooms, a mass of mushrooms on a large stump, from berlese samples from mushrooms, moose dung, and leaf litter, sifted from mushrooms, a pitfall trap baited with dead shrew, sifted from various kinds of litter, such as mixed duff and moss, alder ( Alnus ) litter, and litter and frass in tree holes. Adults were collected during July, August, September, October, and December with most records from August and September. Little was previously known about the habitat associations of this species.