The 23 species of Bembidiini revised in this paper were earlier referred variously to subgenus (or genus) Cillenus Sam. or to closely allied taxa. It is shown that the five New Zealand species are taxonomically quite isolated and different from Bembidion; for these the new genus Zecillenus was erected. All remaining species are true members of genus Bembidion belonging to five different subgenera, all previously named. Subgenus Desarmatocillenus Netolitzky contains 13 species distributed from Tasmania to Japan; three other subgenera are restricted to China, Formosa and Japan, respectively. The single European species, B. laterale Samouelle, constitutes subgenus Cillenus s. str.—Six species, Zecillenus embersoni and 5 Bembidion, adelaideae, foochowense, hebridarum, kasaharai, seticorne, are described as new.—None of the subgenera shows clear affinities to any other subgenus of Bembidion. This was judged primarily on the structures of the internal sac of penis.