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New Canadian Black Flies (Diptera: Simuliidae). II1

Published online by Cambridge University Press:  31 May 2012

G. E. Shewell
Affiliation:
Insect Systematics and Biological Control Unit, Entomology Division, Ottawa, Canada

Extract

Large species; thoracic dorsum conspicuously trivittate; mesopleural membrane bare; basal section of radius bare; tibiae without bright niveous patches; fore tarsal sepments not much dilated. Female: head and thorax thickly cinereouspollinose; mouth parts adapted for biting; tarsal claws simple; posterior margin of seventh abdominal sternite with conspicuous fringe of long hairs; paraproct (anal lobe) with large, highly polished ventral prolongation; ovipositor lobes very widely separated. Male: style without apical tooth; ventral plate broadly cleft almost to base. Pupa: respirator organ with nine uniformly radiating, somewhat inflated, rather short filaments; abdominal armature lacking on fifth to seventh tergites; cocoon fabric loosely reticulate, porous, with greatly elevated opening. Larva: exceptionally long and slender, evenly expanding posteriorly, seventh abdominal segment strongly bulbous ventrally; antenna six-segmented; submentum with eight to 11 hairs on each side

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1959

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References

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