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Three new subspecies are described: Brachyta interrogationis shapsugorum ssp. n. from the environs of Podkhrebtovoe of Krasnodar Region; B. interrogationis miroshnikovi ssp. n. from Lagonaki Plateau in Adygeya Republic, Karachaevo-Сherkessiya and Georgia; B. interrogationis lederi ssp. n. from Dagestan. Each subspecies is characterized by pronotal sculpture and character of elytral design.