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