Аннотация: One new species and two new subspecies of the 'brown" species-complex of the genus Agrodiaetus from Transcaucasia are described on the basis of external morphology and karyology data: Agrodiaetus belovi spec. nov. (Armenia, Gegamsky mts.), Agrodiaetus admetus yeranyani subspec. nov. (Armenia, Zangezur mts.) and Agrodiaetus admetus malievi subspec. nov. (Azerbaijan, Talysh mts., Zuvand plateau). New data on larval food plants are provided. Holotypes are kept in the collection of the Museum of Comparative Zoology (Harvard University, Cambridge, MA, USA).