The alien invasive seed beetle Megabruchidius dorsalis (Chrysomelidae) established in Slovenia

Authors

  • Eva Horvat Univerza v Mariboru, Fakulteta za naravoslovje in matematiko, Koroška cesta 160, SI-2000 Maribor
  • Nina Šajna Univerza v Mariboru, Fakulteta za naravoslovje in matematiko, Koroška cesta 160, SI-2000 Maribor

DOI:

https://doi.org/10.14720/ns.24.1.5-16

Keywords:

Coleoptera, Bruchinae, the honey locust, Gleditsia triacanthos, the Kentucky coffeetree, Gymnocladus dioicus, alien species

Abstract

The Asian seed beetle Megabruchidius dorsalis, which develops inside the seeds of native Gleditsia species, was first recorded in Europe in Italy in 1989. In Slovenia, it was first recorded in Maribor in 2017. Its presence was confirmed in 15 other European countries. In the new range, the seed beetle switched to two new hosts from North America, the honey locust (Gleditsia triacanthos) and the Kentucky coffeetree (Gymnocladus dioicus) both related to the Asian Gleditsia species. Mature G. triacanthos and Gy. dioicus seed pods were collected from the ground at locations in the central and the northeastern parts of Slovenia to investigate the presence of M. dorsalis outside the first described locations in Maribor. Seed pods were kept in bags under constant conditions in laboratory. Exit holes of seed pods and seeds typical of M. dorsalis were found at 36 locations (97%), while alive or dead M. dorsalis beetles were recorded at 26 locations (70%).

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Published

30.06.2022

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Section

Scientific paper

How to Cite

Horvat, E., & Šajna, N. (2022). The alien invasive seed beetle Megabruchidius dorsalis (Chrysomelidae) established in Slovenia . Natura Sloveniae, 24(1), 5-16. https://doi.org/10.14720/ns.24.1.5-16

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