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

Abstract

The paper reports the discovery of the rosalia longicorn Rosalia alpina on European ash trees Fraxinus excelsior in 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.