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Assessment of the Aphodius fimetarius–Aphodius pedellus (Coleoptera: Scarabaeidae) species complex in Canada

Published online by Cambridge University Press:  08 August 2022

Kevin D. Floate Open the ORCID record for Kevin D. Floate [Opens in a new window] ,
Diana Wilches ,
Paul Coghlin  and
Andrew B.T. Smith
Kevin D. Floate*
Affiliation:
Lethbridge Research and Development Centre, Agriculture and Agri-Food Canada, 5403-1st Avenue South, Lethbridge, Alberta, T1J 4B1, Canada
Diana Wilches
Affiliation:
Lethbridge Research and Development Centre, Agriculture and Agri-Food Canada, 5403-1st Avenue South, Lethbridge, Alberta, T1J 4B1, Canada
Paul Coghlin
Affiliation:
Lethbridge Research and Development Centre, Agriculture and Agri-Food Canada, 5403-1st Avenue South, Lethbridge, Alberta, T1J 4B1, Canada
Andrew B.T. Smith
Affiliation:
Canadian Museum of Nature, Research Division, 1740 Chemin Pink, Gatineau, Québec, J9J 3N7, Canada
*
*Corresponding author. Email: [email protected]
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Abstract

Aphodius fimetarius (Linnaeus, 1758) (Coleoptera: Scarabaeidae: Aphodiinae: Aphodiini) sensu lato is a taxon of probable European origin common in cattle dung across North America. This species has recently been recognised as a species complex composed of A. fimetarius and Aphodius pedellus (De Geer, 1774), with overlapping distributions in North America. A previous report that only A. pedellus is present in Canada was based on examination of specimens almost solely from the United States of America. In the present study, we examined the morphology of specimens (n = 2091) from localities across Canada. In combination with DNA barcoding, our results confirm that only A. pedellus is present in Canada. Results of similarity analysis confirm reduced genetic diversity among North American specimens of A. pedellus, consistent with the hypothesis that this species was introduced onto the continent during European settlement.

Type
Research Paper
Information
The Canadian Entomologist , Volume 154 , Issue 1 , 2022 , e39
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Copyright
© The Author(s), 2022 and Her Majesty, the Queen, in right of Canada, as represented by the Minister of Agriculture and Agri-Food Canada. Published by Cambridge University Press on behalf of the Entomological Society of Canada

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Footnotes

†

Retired.

ZooBank registration number: urn:lsid:zoobank.org:pub:8D17128A-E779-4BF2-B51F-4D95937FBCB5

References

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