Length: 1.8-2.2mm. Basic colour: black. Pattern: broad reddish-brown patch at rear of elytra. Number of spots: 0. Pronotum: black with reddish-brown front margin. Head colour: reddish. Leg colour: brown. Other features: hairy; tip of abdomen is reddish-brown.
Habitats: bogs, water margins and undisturbed grassland. Host plants: low-growing vegetation. Food: aphids. Overwintering sites: low down in low herbage.