title: Sexual activity of males and distribution of Stygioides colchicus (Herrich-Schäffer, 1851) (Lepidoptera: Cossidae)
abstract: The attraction of males of Stygioides colchicus (Herrich-Schäffer, 1851) (Cossidae) to the sex attractant for males of Synanthedon andrenaeformis (Laspeyres, 1801) (Sesiidae) was clearly recorded for the first time.This attractant turned out to be a mixture of (3E, 13Z )-octadeca-3,13-dienyl acetate and (2E, 13Z )-octadeca-3,13-dienyl acetate in a ratio of 1:1.The use of this sex attractant made it possible to discover new localities of S. colchicus in Russia.The nomenclatural history of this sp
journal: Invertzool