Tachyusa obsoleta Casey, 1906**

Webster, Reginald P., Klimaszewski, Jan, Sweeney, Jon D. & DeMerchant, Ian, 2012, New Staphylinidae (Coleoptera) records with new collection data from New Brunswick, and an addition to the fauna of Quebec, Canada: Aleocharinae, ZooKeys 186, pp. 83-118 : 88

Tachyusa obsoleta Casey, 1906** Map 8 illustrations in Paśnik (2006)

Material examined.

New Brunswick, Queens Co., Welsford (Bayard) near Nerepis River, 45.4441°N, 66.3300°W, 27.VI.2006, R. P. Webster, coll., river margin, among grass and debris near water (3 ♀, RWC); Bayard at Nerepis river, 45.4426°N, 66.3280°W, 25.V.2008, 30.V.2008, 20.VI.2008, R. P. Webster, coll., river margin, lightly splashing fine sand (3 ♂, 3 ♀, LFC, RWC). York Co., Douglas, Keswick River at Rt. 105, 45.9922°N, 66.8326°W, 9.V.2006, R. P. Webster, river margin, on moist clay (1 ♀, RWC).

Collection and habitat data.

In New Brunswick, most adults of Tachyusa obsoleta were collected during May and June by lightly splashing water on fine sand near a river margin. Other individuals were found on moist clay and by sifting grass and debris along river margins.

Distribution in Canada and Alaska.

BC, SK, NB ( Paśnik 2006). For records from the USA, see Paśnik (2006). This is almost certainly a transcontinental species in North America.

Figures

Map 8. Collection localities in New Brunswick, Canada of Tachyusa obsoleta.