| an investigation on the culicoides species composition at seven sites in southern switzerland. | in the past decade, there have been regular outbreaks of bluetongue (bt) in many parts of europe. owing to the presence of bt disease and its vectors in countries adjacent to switzerland, an initial entomological survey was conducted in 2003, which established the presence of several midges of the genus culicoides (diptera: ceratopogonidae). subsequently, a sentinel herd monitoring system was established with the primary entomological aim being the determination and further study of culicoides p ... | 2009 | 19493190 |