Abstract
Ormosia (Ormosia) hederae (Curtis, 1835) (Limoniidae) and Dicranota (Paradicranota) minuta Lackschewitz, 1940 (Pediciidae) are new for Russia. The first species is new for the North Caucasus, the second one and Dicranomyia (Idiopyga) halterella Edwards, 1921 (Limoniidae) are new to the Caucasus. The material was collected in the Rtsyvashki valley (the Central Caucasus). Data on species ecology were presented.