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1 September 2000 The Ecology of HELOPHORUS ARCTICUS Brown (Coleoptera: Hydrophilidae) Reconsidered
Allan C. Ashworth
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In North America, Helophorus arcticus Brown inhabits the seashore and tidal embayments of the eastern Arctic and because of its distribution is considered to be a halophile. New evidence, including the substrate chemistry of the habitat and the associated fauna and flora at Kuujjuaq, northern Québec, suggests that the designation of H. arcticus as a halophile is incorrect. Fossils of H. arcticus occur in Pleistocene deposits in the mid-latitudes of North America and their distribution along the margin of the Laurentide Icesheet is easier to understand if the species is not a halophile.

Allan C. Ashworth "The Ecology of HELOPHORUS ARCTICUS Brown (Coleoptera: Hydrophilidae) Reconsidered," The Coleopterists Bulletin 54(3), 370-378, (1 September 2000).[0370:TEOHAB]2.0.CO;2
Received: 26 August 1999; Accepted: 1 November 1999; Published: 1 September 2000
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