Gabrius appendiculatus Sharp, 1910

Webster, Reginald P., Smetana, Ales, Sweeney, Jon D. & DeMerchant, Ian, 2012, New Staphylinidae (Coleoptera) records with new collection data from New Brunswick and an addition to the fauna of Quebec: Staphylininae, ZooKeys 186, pp. 293-348 : 317-319

Gabrius appendiculatus Sharp, 1910 Map 37

Material examined.

Additional New Brunswick records, Carleton Co., Meduxnekeag River Valley Nature Preserve, 46.1931°N, 67.6825°W, 15.IX.2004, R. P. Webster, river margin, under drift material (1 sex undetermined, RWC); Two Mile Brook Fen, 46.3619°N, 67.6733°W, 6.V.2005, M.-A. Giguère & R. Webster, eastern white cedar swamp, in moist sphagnum (1, NBM). Queens Co., Grand Lake near Scotchtown, 45.8762°N, 66.1816°W, 12.V.2004, R. P. Webster, lak eshore, under drift material (1 ♂, RWC); Bayard (near Welsford) near Nerepis River, 45.4442°N, 66.3292°W, 25.V.2008, R. P. Webster, pond margin, in moist grass litter on mud (1 ♂, RWC). Sunbury Co., Acadia Research Forest, 45.9816°N, 66.3374°W, 18.VII.2007, R. P. Webster, regenerating mixed forest (8.5 years-old), in sphagnum and leaf litter at bottom of dried vernal pool (1, RWC). York Co., Charters Settlement, 45.8395°N, 66.7391°W, 22.IV.2004, 9.IV.2005, R. P. Webster, residential lawn in grass (1 ♂, 1 sex undetermined, RWC); same locality, forest type, and collector, 17.IV.2005, in flight, collected with aerial net during warm afternoon (1 sex undetermined, RWC); same locality and collector, 29.III.2006, mixed forest under alders near brook, in leaf litter (1 ♂, RWC); Fredericton, at Saint John River, 45.9588°N, 66.6254°W, 7.VI.2005, R. P. Webster, river margin, in flood debris (1 ♂, RWC); 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 (1 ♂, RWC); 14 km WSW of Tracy, S of Rt. 645, 45.6741°N, 66.8661°W, 25.IV-4.V.2010, R. Webster & C. MacKay, old mixed forest with red and white spruce, red and white pine, balsam fir, eastern white cedar, red maple, and Populus sp., Lindgren funnel trap (1, AFC).

Collection and habitat data.

In Europe, adults of this adventive species occur in wet habitats, marshes, swamps, margins of streams and ponds, and swampy meadows; it is found in similar habitats in North America ( Smetana 1995). In New Brunswick, most adults were found along lake, pond, brook, and river margins, usually in leaf litter or drift material. Others were found in an eastern white cedar swamp in moist sphagnum, in a dried vernal pond in sphagnum and leaf litter. Klimaszewski et al. (2005) reported specimens from pitfall traps deployed in a red spruce stand (Acadia Research Forest). Adults were collected in March, April, May, June, July, and September.

Distribution in Canada and Alaska.

BC, ON, QC, NB, NF ( Smetana 1995; Klimaszewski et al. 2005; Brunke and Marshall 2011). Gabrius appendiculatus was first reported from New Brunswick by Klimaszewski et al. (2005).

Figures

Map 37. Collection localities in New Brunswick, Canada of Gabrius appendiculatus.