Dacne quadrimaculata (Say, 1835)

Webster, Reginald P., Sweeney, Jon D. & DeMerchant, Ian, 2012, New Coleoptera records from New Brunswick, Canada: Sphindidae, Erotylidae, Monotomidae, and Cryptophagidae, ZooKeys 179, pp. 169-192 : 173-174

Dacne quadrimaculata (Say, 1835) Map 4

Material examined.

New Brunswick, Carleton Co., Jackson Falls, Bell Forest, 46.2200°N, 67.7231°W, 28.VI.2005, R. P. Webster, mature hardwood forest, u.v. light (1, RWC); same locality and habitat data but 12-19.VI.2008, R. P. Webster, Lindgren funnel traps (2, RWC); Meduxnekeag Valley Nature Preserve, 46.1907°N, 67.6740°W, 20.VI.2006, R. P. Webster, mixed forest, in partially dried Pleurotus species on dead standing trembling aspen (2, RWC); same locality but 46.1877°N, 67.6717°W, 2.IX.2008, R. P. Webster, hardwood forest, on slightly dried Climacodon septentrionale on sugar maple (4, RWC). Sunbury Co., Burton near Sunpoke Lake, 45.7658°N, 66.5546°W, 20.VI.2007, R. P. Webster, red oak and red maple forest, on slightly dried Pleurotus sp. on dead standing poplar (1, RWC).

Collection and habitat data.

In New Brunswick, adults of this species were collected in a mature hardwood forest with American beech, sugar maple, and ash, mixed forests, and an old red oak forest. Most individuals were collected from partially dried Pleurotus sp. on dead standing Populus sp. and on a slightly dried Climacodon septentrionale (Fr.) Kar. on a dead standing sugar maple. A few adults were also captured in Lindgren funnel traps and at an ultraviolet light. Skelley et al. (1991) reported that larvae of this species feed in a variety of hard and soft basidiomycete bracket fungi, including Pleurotus sp. In New Brunswick, adults were collected during June and September.

Distribution in Canada and Alaska.

MB, ON, QC, NB, NS ( Campbell 1991b; Majka 2007).

Figures

Map 4. Collection localities in New Brunswick, Canada of Dacne quadrimaculata