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Records of adventive aleocharine beetles (Coleoptera: Staphylinidae: Aleocharinae) found in Canada

  • Jan Klimaszewski (a1), Volker Assing (a2), Christopher G. Majka (a3), Georges Pelletier (a1), Reginald P. Webster (a4) and David Langor (a5)...

Eight additional adventive aleocharine beetles, native to the Palaearctic region, are reported from Canada, five of them for the first time. They belong to three tribes: Crataraea suturalis (Mannerheim) (Nova Scotia, Saskatchewan, British Columbia) and “Meotica pallens (Redtenbacher)” (Ontario, British Columbia) belong to Oxypodini; Atheta (Chaetida) longicornis (Gravenhorst) (Nova Scotia, Quebec), Atheta (Thinobaena) vestita (Gravenhorst) (New Brunswick), Dalotia coriaria (Kraatz) (Alberta), Dinaraea angustula (Gyllenhal) (Nova Scotia, Prince Edward Island, Quebec, Alberta), and Nehemitropia lividipennis (Mannerheim) (New Brunswick, Nova Scotia, Prince Edward Island, Quebec, Ontario) belong to Athetini; and Homalota plana (Gyllenhal) (Nova Scotia, New Brunswick) belongs to Homalotini. These species have likely been introduced into Canada from Europe by various anthropogenic activities, and their bionomics and possible modes of introduction are discussed. For each species, a short diagnosis and habitus and genital images are provided to assist with identification. The habitus and genital images are presented here for the first time for these species in North America. New United States records are not included in the abstract.

Huit espèces additionnelles de coléoptères aleocharines, originaires de la région Paléarctique, sont rapportées pour le Canada, parmi lesquelles cinq sont mentionnées pour la première fois. Elles appartiennent aux trois tribus suivantes: Oxypodini (2 espèces) — Crataraea suturalis (Mannerheim) (Nouvelle-Écosse, Saskatchewan, Colombie-Britannique), « Meotica pallens (Redtenbacher) » (Ontario, Colombie-Britannique); Athetini (5 espèces) — Atheta (Chaetida) longicornis (Gravenhorst) (Nouvelle-Écosse, Québec), Atheta (Thinobaena) vestita (Gravenhorst) (Nouveau-Brunswick), Dalotia coriaria (Kraatz) (Alberta), Dinaraea angustula (Gyllenhal) (Nouvelle-Écosse, Île-du-Prince-Édouard, Québec, Alberta), Nehemitropia lividipennis (Mannerheim) (Nouvelle-Écosse, Île-du-Prince-Édouard, Nouveau-Brunswick, Québec, Ontario); and Homalotini (1 espèce) — Homalota plana (Gyllenhal) (Nouvelle-Écosse, Nouveau-Brunswick). Ces espèces ont probablement été introduites au Canada depuis l'Europe au travers d'activités anthropiques. Leur bionomique et les différents modes d'introduction possibles sont discutés. Pour chaque espèce, une courte diagnose ainsi que des images de l'habitus et des parties génitales de l'insecte sont fournies pour faciliter l'identification. Ces images sont présentées pour la premières fois pour ces espèces en Amérique du Nord. Les nouvelles mentions pour les États-Unis ne sont pas incluses dans ce résumé.

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