Water scorpion  (Nepa cinerea)

Water scorpion nymph feeding on chironomid midge larvae

© Colin Milkins / www.osfimages.com

Water scorpion with final instar exoskeleton

© Colin Milkins / www.osfimages.com

Immature water scorpion feeding on waterlouse (Asellus aquaticus)

© Roger Tidman / www.flpa-images.co.uk

Immature water scorpion feeding on dragonfly

© Roger Tidman / www.flpa-images.co.uk

Water scorpion taking in air from surface

© Barrie Watts / www.osfimages.com

Water scorpion underwater

© François Gilson / Biosphoto

Water scorpion taking in air

© Rodger Jackman / www.osfimages.com

Water scorpion with air tube above water surface

© Chris Newman / naturalvisions.co.uk

Water scorpion feeding on bloodworm prey

© G. I. Bernard / www.nhpa.co.uk

Water scorpion feeding on tadpole

© Fabio Liverani / naturepl.com

Water scorpion feeding on stickleback's eye

© Colin Milkins / www.osfimages.com

Water scorpions mating

© www.osfimages.com

Water scorpion infected with parasitic larval water mites

© Heather Angel / naturalvisions.co.uk