Pterostichus diligens is a 5 to 7 mm long, black ground beetle.

There are three other small species that make identification very difficult.

Unless identified by a recognised expert, a photo is required and the specimen should be examined in detail. In the comments box, state the key or ID method used and describe the size and identifying characters.

Especially favouring damper areas.

Peak is March to May but does occur in other months.

Widespread and fairly frequent in Britain.

Quite frequent in Leicestershire and Rutland.