With Genus Nyctalus, this genus represents Tribe Pipistrellini and Subfamily Vespertilioninae. All Korean species representing the Genus Pipistrellus are classified in the Subgenus Pipistrellus. Three species of Pipistrellus have been listed as inhabiting Korea, but the presence of one of them, Pipistrellus pipistrellus (Schreber, 1774) remains doubtful. Although P. pipistrellus was reported in central Korea (Ellerman & Morrison-Scott 1951; Won 1958, 1967), no available specimens or collection data exist; these reports possibly represent erroneous identifications (Corbet 1978). Therefore, we delisted P. pipistrellus from our list of the mammals of Korea and confirm two species of Pipistrellus in Korea.