Аннотация:The first Erotylidae of the subfamily Xenoscelinae from the Late Eocene Baltic amber, Warnis
tvanksticus gen. et sp. nov., is described. The new genus is distinguished from closely related Xenoscelis Woll. and Zavaljus Reitt. by the presence of welldeveloped femoral lines on the first abdominal ventrite and also the shape of the pronotum, the body size, the absence of lateral carina on the elytra or pits at the base of the pronotum, and the presence of a gular pit.