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The Rhagio dimidiatus Group in Western North America (Diptera, Rhagionidae)

Published online by Cambridge University Press:  31 May 2012

Maurice T. James
Maurice T. James
Affiliation:
Washington State University, Pullman
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Abstract

The Rhagio dimidiatus group in western North America consists of four species, all but one polytypic. Traditional taxonomic procedure has not been successfully applied to this complex, since the component taxa are variable and often poorly defined. Consequently, a quantitative approach, involving deme-by-deme comparison on the basis of the ten most significant differentiating characters, and interpreted in the light of geographic distribution, is used. The group is reviewed, a key presented, and the included forms described. New taxa are: R. maculifer styx, Montana, R. m. byersi, California, R. expansus expansus, Oregon, California, and R. e. franciscanus, California. R. dimidiatus albibarbis (Bigot) and R. maculifer concavus Leonard are given new status as subspecies.

Type
Articles
Information
The Canadian Entomologist , Volume 96 , Issue 3 , March 1964 , pp. 550 - 568
Copyright
Copyright © Entomological Society of Canada 1964

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References

Adams, C. F. 1904. Notes and descriptions of North American Diptera. Kansas Univ. Sci. Bull. 2: 433–455.Google Scholar
Bigot, J. F. M. 1887. Diptères nouveaux ou peu connus. Leptidi. Soc. zool. Fr. Bull. 12: 97–118.Google Scholar
Coquillett, D. W. 1904. In Baker, C. F., Reports on Californian and Nevadan Diptera, I. Invertebrata Pacifica 1: 17–39.Google Scholar
Fabricius, J. C. 1775. Systema Entomologiae. Flensbergi et Lipsiae.Google Scholar
Fabricius, J. C. 1805. Systema Antliatorum. Brunsvigae.Google Scholar
James, M. T. 1963. Numerical versus phylogenetic taxonomy. Systematic Zool. 12: 91–93.CrossRefGoogle Scholar
Leonard, M. D. 1930. A revision of the dipterous family Rhagionidae (Leptidae) in the United States and Canada. Mem. Amer. ent. Soc. 7: 1–181.Google Scholar
Leonard, M. D. 1931. Some notes on my revision of the Rhagionidae (Diptera). Trans. Amer. ent. Soc. 57: 321–323.Google Scholar
Loew, H. 1863. Diptera Americae septentrionalis indigena. Centuria III. Berl. ent. Z. 7: 1–55.CrossRefGoogle Scholar
Loew, H. 1872. Diptera Americae septentrionalis ingigena. Centuria X. Berl. ent. Z. 16: 49–115.CrossRefGoogle Scholar
Russell, N. H. 1961. The development of an operational approach in plant taxonomy. Systematic Zool. 10: 159–167.CrossRefGoogle Scholar