Rosalia-alpina
Guides
Rosalia
Rosalia longicorn, Alpine longhorn beetle
Rosalia is a genus of longhorn beetles (Cerambycidae) established by Audinet-Serville in 1833. The genus includes the iconic Rosalia alpina, known as the Rosalia longicorn or Alpine longhorn beetle, a large and strikingly colored species protected under the European Union Habitats Directive. Members of this genus are associated with beech forests and have experienced significant range contractions across Europe due to habitat loss and forest management practices. The genus is characterized by elongated bodies, long antennae, and often distinctive coloration including blue-gray tones with black spots.
Rosalia funebris
Banded Alder Borer
Rosalia funebris, commonly known as the Banded Alder Borer, is a striking longhorn beetle in the family Cerambycidae. It is notable for its bold black-and-white coloration and elongated body form. Adults are active in spring and summer and are frequently observed on the bark of hardwood trees, particularly alders. The species is native to western North America, ranging from Alaska to California and New Mexico. Unlike many wood-boring beetles, it is not considered a significant pest as it generally lays eggs in downed rather than living trees.