Based on a fossil specimen from Late Eocene Rovno amber, Latridius usovae Sergi et Perkovsky, sp. n. is described. It differs from Latridius alexeevi Bukejs, Kirejtshuk et Rucker, 2011 and L. jantaricus Borowiec, 1985 (both described from Baltic amber) by the shape of pronotum, elytra, mid and hind tibiae.
Based on a fossil specimen from Late Eocene Baltic amber, Revelieria groehni Sergi, Perkovsky et Reike, sp. n., a new species is described. It is the first fossil species of the genus Revelieria Perris, 1869. The new species clearly differs from extant R. californica and R. genei in the following characters: eyes more large and convex; antennal insertion located more close to eye; temples very short; metasternum longer; fore tibia evenly curved inwards.