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CENTROPTILUM INFREQUENS MCDUNNOUGH (EPHEMEROPTERA: BAETIDAE), A JUNIOR SYNONYM OF PSEUDOCENTROPTILUM PENNULATUM (EATON)

Published online by Cambridge University Press:  31 May 2012

R.G. Lowen  and
J.F. Flannagan
R.G. Lowen
Affiliation:
Department of Entomology, University of Manitoba, Winnipeg, Manitoba, Canada R3T 2N2
J.F. Flannagan
Affiliation:
Department of Entomology, University of Manitoba, Winnipeg, Manitoba, Canada R3T 2N2 and Department of Fisheries and Oceans, Freshwater Institute, 501 University Crescent, Winnipeg, Manitoba, Canada R3T 2N6
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Extract

Centroptilum infrequens McDunnough, 1924 was found to be widespread in Canada and was described in detail at the 5th International Ephemeroptera Conference, Marysville, Australia, 1987 (Lowen and Flannagan 1989). At that time, similarities between C. infrequens and published accounts of Pseudocentroptilum pennulatum (Eaton 1870) were noted and it was suggested that these species are conspecific. We have recently compared specimens of C. infrequens with specimens of P. pennulatum from western Europe, and have noted no discernable differences at any life stage. We therefore conclude that Centroptilum infrequens McDumough, 1924 is a junior synonym of Pseudocentroptilum pennulatum (Eaton) 1870. This is the first record of Pseudocentroptilum in North America and the first record of a holarctic Pseudocentroptilum species, as P. pennulatum is also known from the arctic Ural and Pacific Coast regions of the Soviet Union.

Type
Articles
Information
The Canadian Entomologist , Volume 122 , Issue 1 , February 1990 , pp. 173 - 174
Copyright
Copyright © Entomological Society of Canada 1990

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References

Eaton, A.E. 1870. On some British species of Ephemeridae. Trans. ent. Soc. London 18: 1–8.CrossRefGoogle Scholar
Lowen, G.R., and Flannagan, J.F.. 1989. The male and nymph of Centroptilum infrequens McDunnough (Ephemeroptera: Baetidae). In Campbell, I. (Ed.), Proc. 5th Int. Conf. Ephemeroptera, Australia, 1987. In press.Google Scholar
McDunnough, J. 1924. New Canadian Ephemeridae with notes, II. Can. Ent. 56: 90–98.CrossRefGoogle Scholar