Pterostichus (Melanius) castor Goulet & Bousquet, 1983**

Webster, Reginald P. & DeMerchant, Ian, 2012, New Coleoptera records from New Brunswick, Canada: Gyrinidae, Carabidae, and Dytiscidae, ZooKeys 179, pp. 1-10 : 4

Pterostichus (Melanius) castor Goulet & Bousquet, 1983** Map 5

Material examined.

New Brunswick, York Co., Fredericton, 45.9361°N, 66.6747°W, 17.VIII.2009, R. Webster, D. McAlpine & G. Forbes, beaver lodge, within wall of lodge (one adult was teneral) (2, NBM, RWC); Charters Settlement, 45.8456°N, 66.7267°W, 1.V.2010, R. P. Webster, beaver lodge, under large branches on surface of lodge (10, NBM, RWC).

Collection and habitat data.

Specimens collected in early May were found under large branches on the surface of an North American beaver ( Castor canadensis Kuhl.) lodge, on the southwest-facing side of the lodge, on a sunny, warm day. Adults were common (over 20 observed), and one mating pair was observed, suggesting that adults may move to the surface of the lodge during the spring for mating. Pterostichus castor lives exclusively in inhabited or recently deserted beaver lodges or houses ( Goulet and Bousquet 1983; Bousquet 1998; Larochelle and Larivière 2003).

Distribution in Canada and Alaska.

ON, QC, NB (Bouquet 1991).