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Notes on Three European Diptera Recently Discovered in Canada

Published online by Cambridge University Press:  31 May 2012

G. E. Shewell
G. E. Shewell
Affiliation:
Entomology Research Institute, Research Branch, Canada Department of Agriculture, Ottawa, Ontario
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Extract

Distinguished from the common ‘cluster fly’, Pollenia rudis (Fab.) as follows: Mesonotum with a median stripe anterior to transverse suture (readily seen with naked eye in oblique posterior view). Basicosta black (in rudis it is reddish-brown in female but inclined to be darker in male especially towards the base). Tessellation of abdomen less broken, the contrasting pollinose areas larger and more regular (rectangular) in outline. Abdominal pollen cinereous with bluish reflection (dull yellowish in rudis). Male genitalia (Figs. 1-3) with forceps and aedeagus longer and more slender.

Type
Articles
Information
The Canadian Entomologist , Volume 93 , Issue 11 , November 1961 , pp. 1044 - 1047
Copyright
Copyright © Entomological Society of Canada 1961

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References

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