The biting midge of the West Highlands: fifty years of research.

The biting midge of the West Highlands belongs to the family Ceratopogonidae and approximately 150 species are known to exist in Britain. All of the flies are of minute size and slender build with wings which fold over the back. The females have biting mouthparts including a needle sharp proboscis with scissor type mandibles. The males do not bite. The Ceratopogonidae devours other small insects, some feed on plant juices, others pierce the wing veins of butterflies and some attack juicy caterpillars. Only three genera are bloodsuckers and of these only Culicoides occurs in Britain. The members of this genus are classified by the pattern of wing venation and the spots on the wings. Edwards' gives a detailed table of these characteristics. The commonest species in Scotland is C. impunctatus, although others have been met with on Skye.