In addition to being complex, the process of carcinogenesis is typically prolonged, requiring a significant portion of the lifespan to become clinically apparent. While perturbations in cellular DNA are essential to carcinogenesis, they alone are not sufficient to cause cancer in all cases.
Print Version. Biting midges are minute to tiny flies that can be severe biting pests of humans, pets, livestock, and wildlife. Their blood-sucking habits also raise concerns about possible involvement in the transmission of disease agents.
The biting midges belong to the family Ceratopogonidae which has 152 species in Britain. Most of the species in this Family feed on the blood of other insects such as caterpillars, craneflies, and mosquitoes. For example, one species feeds from the wing veins of dragonflies and lacewings.