Fauna of Horseflies (Diptera, Tabanidae) of the South of the Middle Russian Forest-Steppe and Adjoining Steppe Territories
2020
Prisniy, Yu. A.
The available data on horseflies of the south of the Middle Russian forest-steppe and adjoining steppe territories within Belgorod and Voronezh provinces of Russia and Kharkov Province of Ukraine are summarized, analyzed, and clarified. Altogether, 46 species and 1 subspecies of horseflies are recorded in the region, of which 15 species are restricted to the forest-steppe zone, 10 species, to the steppe zone, and 22 species are widespread or extend into the adjoining zones where they find suitable conditions. The horsefly faunal complexes in the three provinces have the same landscape-zonal structure. The forest and forest-steppe species form the greatest fraction comprising more than 60% of the total species number. The taiga-forest species have similar shares in Voronezh and Kharkov provinces: 16% in each, while in Belgorod Province such species comprise only 6%. The steppe and semi-desert species comprise 25% and 19% in Belgorod and Voronezh provinces, respectively; the fraction of steppe species in Kharkov Province is only 12%.
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