Aedes nigrocanus is known only by a holotype male located at the Natural Museum, London. Minar (1991) in the Catalogue of Palearctic Diptera regards this as a doubtful species and probably a junior synonym of Aedes (Ochlerotatus) pulchritarsis (Rondani). I have examined this unique specimen and compared it with Ae. pulchritarsis, and they are undoubtedly different species. A partial redescription of Ae. nigrocanus is herewith presented, and notes on comparative characters.