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British Culicoides
Contents | Introduction | Individual species pages | References
back to main site | Arbovirology Modelling and Entomology
Photograph of wing at right: click to enlarge.
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The female is very similar to those of the other members of the subgenus. Campbell & Pelham-Clinton (1960) discuss characters which may be used to separate the British females of the obsoletus group. However the females of this species, as well as those of obsoletus and scoticus are variable in size and wing markings, and confirmation of its presence is best carried out by the examination of the male genitalia. The ninth sternite is deeply emarginate, but it differs from C. chiopterus in having the ninth sternite membrane spiculate. The antennal ratio is 1.06-1.19; the sensilla distribution 3,11-15. The third segment of the palp is swollen, with a single sensory pit; there are two spermathecae. Downes & Kettle (1952) describe and figure the mesonotal markings as characters to separate members of the obsoletus group, but these markings are difficult to see in slide- mounted specimens or in distorted dry specimens.
It has been bred from cow dung, but there is little detailed information of its biting habits apart from records of its being found with obsoletus in collections from animals.
From Britain through Europe to the USSR, and north to Scandinavia. Navai (1977) records a specimen from Turkey, but that specimen is in fact imicola; she also records it from Afghanistan and Pakistan.
Nothing known, but owing to its affinities with obsoletus it is potentially suspect as a virus vector.
British Culicoides
Contents | Introduction | References
back to main site | Arbovirology Modelling and Entomology
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