Calodromius spilotus is a small species, measuring around 3.5 to 4.5 mm long. It has a rather flat body shape and black head , the pronotum is reddish-brown, the elytra dark brown with two pale markings on each.

Please provide a photograph and an indication of size.

It is exclusively arboreal and maybe found on the trunks of many tree species at night.

Adults occur throughout the year, peaking in abundance during the summer, they are nocturnal and active year-round in all but the very coldest spells.

Mating begins in late autumn.

It is generally common throughout England and Wales, rather more local and scattered further north to the Scottish Highlands.

Quite frequent in Leicestershire and Rutland.