Grynocharis quadrilineata (Melsheimer, 1844)

Webster, Reginald P., Sweeney, Jon D. & DeMerchant, Ian, 2012, New Coleoptera records from New Brunswick, Canada: Trogossitidae, Cleridae, and Melyridae, with an addition to the fauna of Nova Scotia, ZooKeys 179, pp. 141-156 : 143-144

Grynocharis quadrilineata (Melsheimer, 1844) Map 1

Material examined.

New Brunswick, Carleton Co., Meduxnekeag Valley Nature Preserve, 46.1907°N, 67.6740°W, 20.VI.2006, R. P. Webster, mature mixed forest, in Pleurotus sp. on dead standing Populus sp. (1, NBM); same locality and forest type but 7.VI.2007, R. P. Webster, under bark of standing dead beech (4, RWC); Jackson Falls, Bell Forest, 46.2200°N, 67.7231°W, 5-12.VII.2008, R. P. Webster, mature hardwood forest, Lindgren funnel traps (2, AFC, RWC); same locality and habitat data but 23-28.IV.2009, 28.IV-9.V.2009, 14-20.V.2009, 20-26.V.2009, 16-21.VI.2009, R. Webster & M.-A. Giguère, Lindgren funnel traps (7, AFC, RWC). Queens Co., near Queenstown, 45.6904°N, 66.1455°W, 13.V.2008, R. P. Webster, old growth hardwood forest, under bark of standing dead sugar maple (1, RWC); Cranberry Lake P.N.A. (Protected Natural Area), 46.1125°N, 65.6075°W, 24.IV-5.V.2009, 5-12.V.2009, 12-21.V.2009, R. Webster & M.-A. Giguère, old red oak forest, Lindgren funnel traps (4, AFC, RWC); same locality and habitat data but, 21.V.2009, R. Webster & M.-A. Giguère, under bark of red oak (1, AFC); same locality data and forest type, 13-25.V.2011, 25.V-7.VI.2011, M. Roy & V. Webster, Lindgren funnel traps (5, AFC, NBM). Restigouche Co., Jacquet River Gorge P.N.A., 47.804°N, 65.993°W, 13-23.VI.2009, G. J. McBriarty (2, NBM); 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 (4, AFC, NBM). Sunbury Co., Acadia Research Forest, 45.9866°N, 66.3841°W, 19-25.V.2009, 2-9.VI.2009, 9-16.VI.2009, 24-30.VI.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., 15 km W of Tracy off Rt. 645, 45.6848°N, 66.8821°W, 19-25.V.2009, 21-28.VI.2009, R. Webster & M.-A. Giguère, old red pine forest, Lindgren funnel traps (2, AFC); same locality and habitat data, 10-26.V.2010, 4-16.VI.2010, R. Webster & C. MacKay, Lindgren funnel traps (1, AFC, RWC); same locality and habitat data, 8-20.VI.2011, M. Roy & V. Webster, Lindgren funnel trap (1, NBM).

Collection and habitat data.

In New Brunswick, Grynocharis quadrilineata was found in mature and old hardwood forests with sugar maple ( Acer saccharum Marsh.) and American beech ( Fagus grandifolia Ehrh.), an old-growth northern hardwood forest with sugar maple and yellow birch ( Betula alleghaniensis Britt.), an old red oak ( Quercus rubra L.) forest, a mature (110-year-old) red spruce ( Picea rubens Sarg.) forest, and an old (180-year-old) red pine ( Pinus resinosa Ait.) forest. Adults were captured in Lindgren funnel traps in most of these forest types. Specimens with microhabitat data were collected from Pleurotus mushrooms on a dead, standing poplar ( Populus sp.), from under bark of a dead, standing American beech, from under bark of a standing, dead sugar maple, and from under bark of a red oak. This species has been reported from under bark of a dead poplar ( Barron 1971). Adults were collected during April, May, June, and July in New Brunswick.

Distribution in Canada and Alaska.

MB, ON, QC, NB, NS ( Bousquet 1991; Majka 2011). This species was first reported from Nova Scotia and the Maritime provinces by Majka (2011) based on one specimen and was considered regionally rare. This species appears to be widespread in New Brunswick and was commonly detected using Lindgren funnel traps.