Among 210 fossil specimens of alate aphids from tuff layers at the Bol'shaya Svedlovodnaya River, Maritime Province, USSR, age probably Late Oligocene, in the collection of the Palaeontological Institute, Moscow, representatives of Anoeciidae, Pemphigidae, Mindaridae and Elektraphididae have been found. A species of each of these families is described: Bolshayanoecia rasnitsyni sp.n. and gen.n., Biamoaphis antiqua sp.n. and gen.n., Mindarella biamoensissp.n. and gen.n. and Schizoneurites zherichini sp.n. Most specimens show so few characters that it has been impossible to place them into families with certainty. Hormaphididae and Drepanosiphidae are perhaps present. Aphididae, Lachnidae and Greenideidae are apparently absent. So the composition of the aphid fauna is not essentially different from other faunas in known deposits from Early Tertiary except for the relative prevalence of Anoeciidae.