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Two New Black Flies from Saskatchewan (Diptera: Simuliidae)1

Published online by Cambridge University Press:  31 May 2012

G. E. Shewell  and
F. J. H. Fredeen
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Extract

The material on which the following descriptions are based was collected by the junior author during a study of the life-histories and ecologies of the Simuliidae of the Prairie Provinces. The type locality for both forms is the Shell River at the bridge on Provincial Highway No. 55, five miles west of Prince Albert and about 24½ miles above its junction with rhe North Saskatchewan River. Here the river is about 30 feet widc and has a bed of fine gravel or sand. When the collections were made, the water had a mean depth of one foot, a flow-rate of 1.5-2.0 ft. per second, and a temperature range of 55-59° F. Pupae were collected from emergent vegetation, chiefly grass blades, in the swifter parts of the stream. The following species were also taken at this site: Simulium (Hellichia) canonicolum (D. & S.), S. (Eusimulium) aureum Fries, S. (Byssodon) rugglesi N. & M., S. decorum Wlk., S. luggeri N. & M., S. tuberosum Lund., S. venustum Say, and S. (Neosimulium) vittatum Zett.

Type
Articles
Information
The Canadian Entomologist , Volume 90 , Issue 12 , December 1958 , pp. 733 - 738
Copyright
Copyright © Entomological Society of Canada 1958

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References

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