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Field and laboratory evidence for a volatile pheromone produced by parous females of the Scottish biting midge, Culicoides impunctatus
Author(s) -
BLACKWELL A.,
DYER C.,
LUNTZ A. J. MORDUE,
WADHAMS L. J.,
MORDUE W.
Publication year - 1994
Publication title -
physiological entomology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.693
H-Index - 57
eISSN - 1365-3032
pISSN - 0307-6962
DOI - 10.1111/j.1365-3032.1994.tb01049.x
Subject(s) - biology , midge , ceratopogonidae , attraction , culicoides , pheromone , host (biology) , biting , zoology , olfactometer , sex pheromone , bioassay , ecology , larva , linguistics , philosophy
. Electrophysiological, behavioural and field evidence is presented for a volatile attractant produced by host‐seeking, parous female Culicoides impunctatus Goetghebuer. Attraction of host‐seeking females to other live parous females or to extracts of parous females was demonstrated in Y‐tube bioassays, as well as in field trials using baited sticky traps. Threshold numbers were 100–200 females, both in the laboratory and field. Antennal receptors to this pheromone were revealed by recording electroantennograms (EAGs) in response to odour from live parous females and to the extracts of female midges. The female‐produced attractant did not alter field catches of male C. impunctatus.