Rosalia longicorn Rosalia alpina (L.) (Coleoptera: Cerambycidae) uses roadside European ash trees Fraxinus excelsior L. - an unexpected habitat of an endangered species

Rosalia longicornRosalia alpina(L.) (Coleoptera: Cerambycidae) uses roadside European ash treesFraxinus excelsiorL. - an unexpected habitat of an endangered speciesThe paper reports the discovery of the rosalia longicornRosalia alpinaon European ash treesFraxinus excelsiorin the Magura National Park (Beskid Niski Mts, SE Poland) in August 2011. Imagines were found on dead trees growing by the side of a road running between a forest and a meadow. At least eleven individuals were observed, including mating beetles. The data on this previously unknown habitat of the rosalia longicorn in Poland are discussed in the context of its trophic relationships and habitat requirements, as well as species conservation issues.