Xyleborus pfeilii (Ratzeburg, 1837) Fig. 17

Bostrichus pfeilii Ratzeburg, 1837.

Bostrichus alni Mulsant & Rey, 1856. Synonymy Hagedorn 1910.

Xyleborus vicarius Eichhoff, 1875. Synonymy Schedl 1963.

Xyleborus adumbratus Blandford, 1894.Synonymy Schedl 1963.

Type material.

Syntypes female; "im Lüneburgschen und in Bayern"; not located, if extant, probably in SDEI.

Distribution.

Africa; Asia; Europe; North America (introduced): Canada: British Columbia; United States: Maryland, Oregon, Pennsylvania, Washington; South America: Brazil.

Notes.

Xyleborus pfeilii was first detected in North America in Maryland in 1992 (Vandenberg et al. 2000) and in Oregon in 1997-98 (Mudge et al. 2001). Distinguished from X. volvulus by its larger size. Wood and Bright (1992) suggest that this species may be a synonym of X. volvulus .