Cymatia coleoptrata


One of the few Corixidae that can usually be identified from an image. It is usually brownish in colour with large eyes and a yellow face. It is the only corixid with dark longitudinal lines. Oval in shape and has two hind legs that are oar-shaped to help it swim.

Identification difficulty

Stillwater ponds and lakes.

When to see it

All year round.

UK Status

Widespread and fairly frequent in England and Wales.

VC55 Status

Fairly frequent in Leicestershire and Rutland.

Leicestershire & Rutland Map


Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

UK Map