This Water-measurer nymph had a fat catch: Eurycercus lamellatus, a water-flea that often sits on stems of water plants and thus makes a good target for the Water-measurers flashing spear: his elongated mouth parts. It's a miraculous performance: we humans may learn how to spear a fish, but imagine that spear attached to and moved by your head! The little crustacean is injected with digestive fluids and after that sucked in as "protein porridge". This Water-measurer caught more water-fleas within a few minutes, the one on the picture was it's best catch. It is a last instar nymph, the adult can be seen on this page. A day later the nymph had a moulting: what I first thought to be the perished bug, later appeared to be the shedded skin, the animal itself being very much alive.