Priotyrannus
Priotyrannus
Among the largest longhorn beetles of the Palearctic region, *Priotyrannus* [auct., verify] is a monotypic genus of striking proportions, with adults reaching 40–70 mm in length. Confined to southern China and occurring from lowlands to around 1500 m altitude, this robust, dark brown beetle is rarely encountered owing to its strictly nocturnal habits. Adults are most readily observed at ultraviolet light traps during the summer months, from June through September. The larvae develop slowly over two to five years, tunnelling deep into the heartwood of subtropical broadleaf trees.
Seasonal activity
Flight season: Summer–Autumn
Green = active months · Orange = peak
Host plants
Primary hosts: oak
External resources
Field tip: Nocturnal, often large; attracted to light (UV lamp). Monotypic genus — rare.