Acanthocinus griseus is a species of longhorn beetle of the subfamily Lamiinae. It was described by Johan Christian Fabricius in 1792 and is known from Europe, Russia, and Asia Minor. The beetles are 8-13 millimetres long and live for approximately 1–2 years. They inhabit coniferous trees including those in the genera Pinus, Picea, and Abies. They are also known to inhabit oaks.[1]