Krivosheina N.P.
First record of Hesperinus cuspidistylus Hardy et Takahashi, 1960 (Diptera: Hesperinidae) from Russia
Number: 502, Pages: 8 - 11
The species Hesperinus cuspidistylus Hardy et Takahashi, 1960 is recorded from Russia for the first time. Diagnostic characters of three similar species, H. cuspidistylus, H. rohdendorfi Krivosheina et Mamaev, 1967 and H. nigratus Okada, 1934, are discussed. These species differ in the structure of male terite 9 and form of gonostyli. A key to the species from the Russian Far East and Japan is given.