Ceutorhynchus obstrictus (Marsham, 1802)**

Webster, Reginald P., Anderson, Robert S., Sweeney, Jon D. & DeMerchant, Ian, 2012, New Coleoptera records from New Brunswick, Canada: Anthribidae, Brentidae, Dryophthoridae, Brachyceridae, and Curculionidae, with additions to the fauna of Quebec, Nova Scotia and Prince Edwar, ZooKeys 179, pp. 349-406: 349

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Ceutorhynchus obstrictus (Marsham, 1802)**


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).