Adults of 16 species of Dytiscidae (Coleoptera: Adephaga) were collected in wetland habitats of Akimiski Island (Nunavut, Canada). Except for Colymbetes dolabratus (Paykull) and Hydroporus lapponum Gyllenhal, both of which are considered Arctic or Subarctic elements, all other species collected are characteristic of the Boreal ecozone. Whereas all species sampled are deemed to have a transcontinental distribution in North America, four species, Agabus antennatus Leech, Dytiscus circumcinctus Ahrens, Rhantus sericans Sharp, and Neoscutopterus hornii Crotch, stand out as primarily Western species.
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Vol. 72 • No. 4