Rhamnusium bicolor is a species of beetle in the family Cerambycidae.

The species is widespread in Europe.

[1][2] It was first described by German biologist Franz von Paula Schrank (1747–1835) in 1781.

The adult beetle is 12–24 mm (0.47–0.94 in) in size and flies between May and June.

This longhorn beetle article is a stub.