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Allozyme variation supports the recognition of Agabus lapponicus (Thomson) (Coleoptera, Dytiscidae) as a distinct species

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image of Insect Systematics & Evolution

Allozyme electrophoresis of the diving beetles Agabus congener (Thunberg) and A. lappanicus (Thomson) yie)ds clear interspecific differences. Populations of A. congener from Sweden and Seotland are monomorphic at a phosphogtucomutase locus, whereas in populations of A. lapponicus from N Sweden two alleles appear at about equal frequencies. In samples from the area of sympatry in northern Sweden only mates could be identified and tested for allozyme variation. The results provide evidence in favour of the recognition of A. congener and A. lapponicus as separatc species.

Affiliations: 1: Department of Animal Ecology, University of UmeÅ. 901 87 UmeÅ, Sweden; 2: Department of Zoology, University of Lund, Helgonavägen 3, 223 62 Lund, Sweden


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