Nowe stanowiska Calamobius filum (Rossi, 1790) (Coleoptera: Cerambycidae) w Polsce

New records of Calamobius filum (Rossi, 1790) (Coleoptera: Cerambycidae) in Poland. Calamobius filum (Rossi, 1790) has very recently been recorded in the Polish part of Silesia. Six new localities in Upper Silesia and the Eastern Sudety Mts. are reported, details of the species’ habitats are given, and migration routes are discussed. It is concluded that the Moravian Gate has played an important role in the species’ spread to Poland, and it is likely that linear infrastructure, like roads and motorways, will likewise be of significance for the species’ further expansion in Poland