Distribution of the invasive ambrosia beetle Xyleborinus attenuatus Blandford, 1894 (Coleoptera: Curculionidae: Scolytinae) in the Czech Republic (Central Europe)

In Europe, Xyleborinus attenuatus Blandford is considered an invasive bark beetle native to East Asia. We used the results of many local surveys and data from private and museum collections to get information on the distribution and abundance of X. attenuatus Blandford in the Czech Republic. The ambrosia beetle X. attenuatus Blandford is probably widespread throughout the territory of the Czech Republic, from the lowlands to the mountains, and has one generation per year in Central Europe. The flight activity lasts from mid-March to May, F1 adults emerge in August and September and overwinter in wood or in the ground under an infested tree. X. attenuatus Blandford predominantly occupies soft deciduous trees and so far there economic damage have not been reported yet. However, X. attenuatus Blandford is a vector of ambrosia fungi Ambrosiella spp. and Raffaelea spp., and therefore this ambrosia beetle should be monitored.