Dendrophagus cygnaei Mannerheim, 1846

Webster, Reginald P., Sweeney, Jon D. & deMerchant, Ian, 2012, New Coleoptera records from New Brunswick, Canada: Silvanidae and Laemophloeidae, ZooKeys 179, pp. 157-168 : 159-160

Dendrophagus cygnaei Mannerheim, 1846 Map 1

Material examined.

Additional New Brunswick records. Carleton Co., Richmond, near Hovey Hill P.N.A. (Protected Natural Area), 46.1155°N, 67.7631°W, 10.V.2005, R. P. Webster, clear-cut (hardwood forest), under bark of Populus sp. (2, RWC); Jackson Falls, Bell Forest, 46.2200°N, 67.7231°W, 19-27.VI.2008, 5-12.VII.2008, R. P. Webster, mature hardwood forest, Lindgren funnel traps (3, AFC, RWC); same locality and habitat data but 23-28.IV.2009, 14-20.V.2009, R. Webster & M.-A. Giguère, Lindgren funnel traps (5, AFC). Charlotte Co., 10 km NW of New River Beach, 45.2110°N, 66.6170°W, 30.IV-17.V.2010, R. Webster & C. MacKay, old growth eastern white cedar forest, Lindgren funnel trap (1, AFC). Queens Co., Cranberry Lake P.N.A, 46.1125°N, 65.6075°W, 24.IV-5.V.2009, 21-27.V.2009, R. Webster & M.-A. Giguère, old red oak forest, Lindgren funnel traps (6, AFC). Restigouche Co., Dionne Brook P.N.A., 47.9030°N, 68.3503°W, 30. V– 15.VI.2011, M. Roy & V. Webster, old-growth northern hardwood forest, Lindgren funnel traps (2, AFC, NBM); same locality and collectors but 47.9064°N, 68.3441°W, 31. V– 15.VI.2011, old-growth white spruce and balsam fir forest, Lindgren funnel traps (3, AFC, NBM). Sunbury Co., Acadia Research Forest, 45.9866°N, 66.3841°W, 8-13.V.2009, 13-19.V.2009, 19-25.V.2009, R. Webster & M.-A. Giguère, mature (110-year-old) red spruce forest with scattered red maple and balsam fir, Lindgren funnel traps (4, AFC). York Co., Charters Settlement, 45.8342°N, 66.7452°W, 23.IV.2004, R. P. Webster, mixed forest, under bark of sugar maple (1, RWC); Charters Settlement, 45.8395°N, 66.7391°W, 19.V.2007, R. P. Webster, mixed forest, under bark of large Populus sp log (2, RWC); Canter bury, 45.8920°N, 67.6592°W, 8.VI.2004, D. Sabine & R. Webster, hardwood forest, under bark (1, RWC); 15 km W of Tracy off Rt. 645, 45.6848°N, 66.8821°W, 22-25.IV.2009, 25.IV-4.V.2009, 7-14.VII.2009, R. Webster & M.-A. Giguère, old red pine forest, Lindgren funnel traps (8, AFC, RWC); 14 km WSW of Tracy, S of Rt. 645, 45.6741°N, 66.8661°W, 26.IV-10.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 traps (2, AFC).

Collection and habitat data.

Dendrophagus cygnaei was found in various forest types in New Brunswick, including hardwood forests, an old red oak ( Quercus rubra L.) forest, mixed forests, a red spruce ( Picea rubens Sarg.) forest, an old (180-year-old) red pine ( Pinus resinosa Ait.) forest, an old-growth northern hardwood forest, an old-growth white spruce ( Picea glauca (Moench) Voss) and balsam fir ( Abies balsamea (L.) Mill.) forest, and an old-growth eastern white cedar ( Thuja occidentalis L.) forest. Adults were collected from under bark of Populus and sugar maple ( Acer saccharum Marsh.). This species was commonly collected in Lindgren funnel traps at most sites where these traps were deployed. Adults were collected during April, May, June, and July.

Distribution in Canada and Alaska.

AK, BC, AB, MB, ON, QC, NB, NS ( Bousquet 1991; Majka 2008). The New Brunswick record of Dendrophagus cygnaei reported by Majka (2008) was based on a specimen collected by W. McIntosh from Saint John in June of a year predating 1910. The above records provide the first recent records of this species from the province.