The genus Dasysyrphus Enderlein, 1938 (Diptera: Syrphidae) was studied in Northern Iran. Two species, D. albostriatus (Fallen, 1817) and D. tricinctus (Fallen, 1817) were identified. D. tricinctus is a new record for the fauna of Iran. Diagnostic characters and geographical distribution of D. tricinctus are briefly discussed. Supplementary photographs of the species are provided.