The new genus and species Spinestis nikita, gen. n., sp. n. from the Crimea, Ukraine is described from both sexes. The new genus resembles Tapinesthis and Megaoonops. The type species of these genera are illustrated. The conformation of the male palp and endogyna in Oonopidae are briefly discussed. The relationships of Spinestis, gen. n., Megaoonops, Oonopinus, Oonops and Tapinesthis are discussed.