Length: 1.8-2.2mm. Basic colour: black. Pattern: none, or paler strip at rear of elytre. Number of spots: 0. Pronotum: reddish-brown with black patch at base (male); black (female). Head colour: reddish-brown (male); black (female). Leg colour: reddish-brown. Other features: hairy; reddish-brown antennae and mouthparts.
Habitats: heathland and other dry habitats. Host plants: low-growing vegetation. Food: aphids. Overwintering sites: low herbage and moss.