A new fossil species of the genus Anevrina Lioy is described from 40 million-year-old Baltic amber. It differs from the only other described fossil species of this genus, Anevrina oligocoenica Brues, by the setation of the tibiae and the structure of the male genitalia. The new species is most similar to the extant Anevrina olympiae (Aldrich), from which it differs by the darker color and details of the male genitalia.