A new bark-gnawing beetle (Coleoptera: Cleroidea: Trogossitidae) from Baltic amber

A new extinct representative of the tribe Trogossitini, Ligaschonus succiniripae gen. et sp. nov., is described, diagnosed, and illustrated based on a well-preserved specimen from Eocene Baltic amber. The extinct beetle is compared with related extant genera of the tribe Trogossitini, from which the inclusion in Baltic amber can be distinguished by a unique combination of a comparatively small body size, elliptically convex eyes, tiny but distinct anterior pronotal angles, a pronotum narrowed at the base, finely and regularly punctate elytra without carinae, small spines along the outer margin of tibiae, and the absence of median longitudinal groove or a pair of distinctly projecting horns in frons. This represents only the second trogossitid species described from Baltic amber and the third bark-gnawing beetle from all fossil resins.