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Some Adult and Larval Characteristics of a British “Autogenous” Strain of Culex pipiens L.

Published online by Cambridge University Press:  06 April 2009

J. F. Marshall  and
J. Staley
J. F. Marshall
Affiliation:
British Mosquito Control Institute, Hayling Island
J. Staley
Affiliation:
British Mosquito Control Institute, Hayling Island
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Extract

1. A strain of Culex pipiens which is autogenous and stenogamic has been found at Hayling Island, England, and compared with British anautogenous strains.

2. Definite characteristics in adults of both sexes and in larvae have been found which separate the autogenous from the anautogenous British strains of C. pipiens.

3. The autogenous strain differs from the anautogenous strains in (a) the lighter colour of the thorax of the adults; (b) the greater average number of hairs on the ninth tergite of the adults; (c) the relative shortness of the male palps in comparison with the proboscis; (d) the larger average number of branches in each of the four siphonal tufts of the fourth instar larvae; (e) the lower siphonal index of the fourth instar larvae; and (f) the greater width of the egg relatively to its length.

Type
Research Article
Information
Parasitology , Volume 27 , Issue 4 , October 1935 , pp. 501 - 506
Copyright
Copyright © Cambridge University Press 1935

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References

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