Black dorsally, grey ventrally. Femora with a strong tooth. Rostrum elongate, not carinate and strongly longitudinally furrowed. Prothorax slightly longer than wide, slightly arched on the sides, and with large prominent, close set and rounded granules. Brown at first, it becomes almost black after a few days.
Males are rare and reproduction is almost entirely parthenogenetic .
Growth lasts from 9 months to two years. L ife Cycle - 1 generation every 2 to 3 years depending on the region and the weather conditions. They spend a winter in the ground and under various shelters. They die at the approach of the next winter. The larvae hibernate once or twice before pupating in spring.