In this paper, submitted brief history employee Department of Entomology to wartime Alexei Rushchinski. He was a lecturer entomology and famous collector of butterflies and beetles. His clothing collection of butterflies, he left at the department, and it has been preserved to this day. Also survived his case of butterflies. These historical subjects provoked us to write this article. Also in the future we are going to compile a catalog of butterflies registred in the last 150 years on the territory Republic of Moldova. The register recorded 517 species of butterflies collected by him personally. These butterflies belong to 2 suborders (Laciniata – 1 species / 0.2%; Frenata – 516 species / 99,8%). 2 series (Microfrenata – 13 species / 2,5% and Macrofrenata – 503 / 97,4%), 2 groups (Heterocera – 413 species / 80,0% and Rhopalocera – 90 / 17,4%), 12 superfamilies, 23 families and 214 genus.