Family Corixidae – Water Boatmen

39 UK species. Yellow and black marked bugs with powerful legs for swimming. They mainly feed on algae.

Lesser Water Boatman (Corixa punctata)

Lesser Water Boatman Corixa punctata

This boatman swims the right way up, instead of upside down on its back like similar species do. The middle and hindlegs are about the same length. The upper body surface is flattened without a central keel, and the underside is pale.

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