Culicoides sonorensis is a species of biting midge belonging to the family Ceratopogonidae. These small insects are typically found in moist environments, such as wetlands and near bodies of water. They are known for their painful bites and can be a nuisance to both humans and animals. This species is particularly significant in veterinary medicine, as it is a known vector for various diseases affecting livestock, including Bluetongue virus. Their life cycle includes egg, larval, pupal, and adult stages, with adults emerging primarily during warm months when conditions are favorable for breeding.