Atheta graminicola

Atheta (s. str.) graminicola (Gravenhorst, 1806)

Fig 39, Map 39

New Record. CANADA, New Brunswick, Albert Co., Shepody NWA, Mary’s Point Section, 45.7250°N, 64.6651°W, 31.V.2004 (1 ♀, RWC). Queens Co., Grand Lake near Scotchtown, 45.8762°N, 66.1816°W, 25.IV.2004, R.P. Webster and M.-

Map 39. Collection localities in New Brunswick, Canada of Atheta graminicola.

40 4Į

42

Figures 37–42. 37 Atheta aemula 38 A. annexa 39 A. graminicola 40 A. irrita 4Į A. klagesi 42 A. longicornis [37, 40, 42, apical part of abdomen removed]. Scale = 1 mm

A. Giguère (1 ♁, RWC). Restigouche Co., Jacquet River Gorge PNA, 47.7627°N, 66.0270°W, 24.VI.2008 (1 ♀, RWC). Sunbury Co., Portobello Creek NWA, 45.8950°N, 66.2728°W, 11.IV.2006 (1 ♀, RWC). York Co., Charters Settlement, 45.8395°N, 66.7391°W, 23.IV.2008 (2`♁, RWC).

Bionomic Notes. This species was collected from drift material (mostly grass litter) on upper margin of a sea beach, in leaf litter at base of a tree in a red oak and maple forest, in leaf litter in the crotch of a silver maple with multiple trunks in early April (this was probably an overwintering site) and among moist leaves on the margin of a vernal pool in a hardwood forest. Two individuals were collected with an aerial net late in the afternoon (15:00–18:00 h) when snow was still present in shaded areas in the forest. In Quebec, A. graminicola was collected from leaf litter beside a stream and in Salix litter at two localities in the Yukon Territory (Gusarov 2003). Adults were collected in April, May and June. Collection method: sifting, some collected during evening flight.

Distribution in Canada and Alaska. AK, YT, NT, BC, AB, MB, ON, QC, NB, NF & LB (Gusarov 2003; Gouix and Klimaszewski 2007).