Eptesicus nilssonii (Keyserling et Blasius, 1839) —Northern Bat Ƒespertilio nilssonii Keyserling and Blasius, 1839 p.315; Type locality- Sweden. Eptesicus nilssonii: Mori, 1928 p.293; Tate, 1947 p.90; Ellerman & Morrison-Scott, 1951 p.155; Won, 1968 p.118; Han, 1994 p.45; Won & Smith, 1999 p.11; Son, 2001 p.111; Yoon, 2004 p.81. E. parvus Kishida, 1932 p.2; Type locality- northern Korea; Tate, 1947 p.91. E. nilssonii parvus: Ellerman & Morrison-Scott, 1951 p.155; Won, 1958 p.457; Won, 1967 p.336; Won, 1968 p.120; Corbet, 1978 p.57 (doubtful); Yoshiyuki, 1989 p.168; Yoon, 1992 p.48; Yoon, 2010 p.65. Range: The distribution of E. nilssonii ranges throughout the Korean Peninsula, but the species remains rare in southern Korea (Han et al. 2011; Fig. 35). The northern bat was first recorded in Lanam, Hamgyeongbuk Province and observed in the area surrounding Seoul and Gyeonggi Province (Won 1967; Son 2001; Kim et al. 2015). Remarks: Only the Subspecies Eptesicus nilssonii parvus Kishida, 1932 was recognized for Korea (Won 1968; Yoon 2010). Although Hanák and Horáćek (1986) regarded this subspecies as an erroneous identification of Pipistrellus savii, Yoshiyuki (1989) classified E. nilssonii from Sakhalin and Hokkaido to E. n. parvus.

Published as part of Jo, Yeong-Seok, Baccus, John T. & Koprowski, John L., 2018, Mammals of Korea: a review of their taxonomy, distribution and conservation status, pp. 1-216 in Zootaxa 4522 (1) on pages 57-58, DOI: 10.11646/zootaxa.4522.1.1, http://zenodo.org/record/2610198