Length 3-4mm. Prosoma red-brown with dark margin. Sternum red-brown, with black margin. Chelicerae dark brown, robust. Legs yellowish-brown, robust. Opisthosoma dark grey, almost black.

Microscopic examination of the genitalia is required to confirm this species.

Found in wide range of habitats including marshes, bogs, woodland and heath, beneath logs and rocks and amongst leaf litter.

Summer-Autumn

Widespread. 

Widespread. 

https://srs.britishspiders.org.uk/portal.php/p/Summary/s/Saaristoa+abnormis