Blackflies (Simuliidae).
Leiden: E. J. Brill, 1990. Quarto, text illustrations, very good copy in dustwrapper. Fauna of the USSR: Diptera. Volume 6, part 6. More
Leiden: E. J. Brill, 1990. Quarto, text illustrations, very good copy in dustwrapper. Fauna of the USSR: Diptera. Volume 6, part 6. More