Length: 2.5 - 3mm. Basic colour: reddish-brown. Pattern: five black spots. Number of spots: 5. Pronotum: reddish-brown, narrower than elytra. Head colour: reddish-brown. Leg colour: reddish-brown. Other features: hairy; elongate (oblong with parallel sides) and dorsoventrally flattened; long antennae.
Habitats: marshes, riversides, pondsides. Host plants: Reedmace, Reed, rushes. Food: aphids. Overwintering sites: leaf sheaths of Reedmace and Reed.