North American Xyleborini north of Mexico: a review and key to genera and species (Coleoptera, Curculionidae, Scolytinae)

Bark and ambrosia beetles (Scolytinae) are the most successful group of invasive wood borers worldwide, and the most invasive among them are species in the tribe Xyleborini. This haplodiploid, highly inbred, fungus-farming group is represented by 30 non-native species in North America, of which at least five are serious pests. The few identification resources for Xyleborini that exist are becoming outdated due to new species arrivals and nomenclatural changes. Here we present a new comprehensive key to Xyleborini currently known from the continental United States. Compared to the previous key, the following species have been added to the North American fauna: Ambrosiodmusminor (Stebbing), Ambrosiophilusnodulosus (Eggers), Anisandrusmaiche Kurentsov, Coptoboruspseudotenuis (Schedl), Cyclorhipidionfukiense (Eggers), Dryocoetoidesreticulatus Atkinson, Dryoxylononoharaense (Murayama), Euwallaceainterjectus (Blandford), Xyleborinusandrewesi (Blandford), Xyleborinusartestriatus (Eichhoff), Xyleborinusoctiesdentatus (Murayama), Xyleborusbispinatus Eichhoff, Xyleborusseriatus Blandford, Xyleborusspinulosus Blandford, and Xylosandrusamputatus (Blandford).