Rhagium inquisitor is one of the most common longhorn beetles of European coniferous and mixed forests. It develops predominatly in conifers (Pinus, Picea, Abies, Larix), but is also reported from Betula, Fagus or Quercus. Larvae feed under the bark of dead stems and stumps. Life cycle 2 years, pupation in autumn under the bark in oval pupal cell surrounded by long wooden shavings. Adults emerge from April to June and can be found on the freshly felled wood and ocassionaly on flowers.

Body length:	9 - 22 mm
Life cycle:	2 years
Adults in:	April - July
Host plant:	polyphagous, but coniferous trees are strongly preferred
Distribution:	Europe, Algeria, Russia, Caucasus, Transcaucasia, Turkey

The living beetle was photographed in Olešná u Rakovníka environs (Central Bohemia, Czechia) on April 20, 2018. The mounted specimen was collected in Stará Boleslav (Central Bohemia, Czechia) on a stump of a freshly felled Scotch pine tree (Pinus sylvestris) in May 1994.

Collected by Milan Lovětínský and M.Hoskovec