[Relation between the antigenic properties of warble flies and their origin]

Common antigenic components were studied in 14 species and 7 genera of 3 families of gadflies. Common antigenic components of the family Hypodermatidae were studied most thouroughly. No antigenic affinity was found between the families of gadflies. As far as these characters are most distinct in quantitative respect in the family Hypodermatidae the author suggests a comparative youth of this family and recommends to use immunobiological reactions for classification and definition of phylogenetic affinity of gadflies and other endo and ectoparasites which have common antigenic structures. The possibility to use monopreparations for diagnosis and prophylaxis of diseases caused by gadflies larvae is considered.