Ceutorhynchus obstrictus (Marsham, 1802)** Map 29

Material examined.

New Brunswick, Carleton Co., Bellville, Meduxnekeag Valley Nature Preserve, 46.1890°N, 67.6764°W, 2.VI.2008, R. P. Webster, river margin, on wild mustard (1, RWC). Gloucester Co., Caraquet, near the Acadian Historical Village, 47.7887°N, 65.0756°W, 28.VI.2006, 29.VI.2007, R. P. Webster, inland margin of salt marsh, sweeping (1, RWC).

Collection and habitat data.

Theinvasive Ceutorhynchus obstrictus (cabbage seedpod weevil) is a serious pest of canola ( Brassica napus L.) and oilseed rape ( Brassica rapa L.) in North America ( Cárcamo et al. 2001; Brodeur et al. 2001; Dosdall et al. 2002; Dosdall et al. 2006). In New Brunswick, adults were found on wild mustard on a river margin and swept from foliage on the inland margin of a salt marsh. Adults were collected during June.

Distribution in Canada and Alaska.

BC, AB, SK, ON, QC, NB (McLeod 1962; Butts and Byers 1996; Brodeur et al. 2001; Dosdall et al. 2002; Mason et al. 2003). The species was first reported (as Ceutorhynchus assimilis Paykull) in North America from the the lower mainland of British Columbia, Canada in 1931 (McLeod 1962) and had become well established in Quebec by 2000 (Brodeur et al. 2001).