Three alien bark and ambrosia beetles (Coleoptera, Curculionidae, Scolytinae) new to Switzerland

• DOI: 10.3897/alpento.7.103269
• Publication Date: 2023-05-19T17:30:32Z
• Authors: Andreas Sanchez; Yannick Chittaro; David Frey; Bärbel Koch; Doris Hölling; Eckehard G. Brock...; Beat Ruffner; Miloš Knížek
• Keywords: Ambrosia

Identifying alien species is important to ensure the early detection of biological invasions and survey shifts in distributions context global change. Here, we report on three bark ambrosia beetles newly detected Switzerland: Cyclorhipidion distinguendum (Eggers, 1930), C. pelliculosum (Eichhoff, 1878), Hypothenemus eruditus (Westwood, 1834). These were recorded for first time during a comprehensive saproxylic accross major forest types along an altitudinal gradient entire growing season southern Alps, canton Ticino. Their local abundance number occurrences different lowland habitats, including alluvial forests national importance, indicates that all are already naturalized. Given their polyphagy, it likely will become more extensively distributed across Switzerland, with yet unknown environmental impact.