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The Strumigenys ant species (Hymenoptera: Formicidae) are poorly studied in Bulgaria due to their small size and cryptic lifestyles. To date, only one species, S. baudueri (Emery, 1875), has been reported from a collecting site in the East Rhodopi Mountains (South Bulgaria). Herein we provide the fi rst records of another two species in Bulgaria: S. argiola (Emery, 1869) (Northeast Bulgaria) and S. tenuipilis Emery, 1915 (South Pirin Mountain). Scanning electron microscope micrographs of both species are also provided.