The long narrow neck fooled me The probability is that it is ACILIUS SULCATUS This is a close relative to the Great Diving Beetle and almost all beetle Larvae in ponds are vociferous predators. If your pond is well established I don't see any need for getting rid, but if Your froglets and newts are few and far between, a brood of these may decimate them. Dave
Beatle larvea, good hunters unless you want fry lol they eat them too, but they are a nessecary ingredient of a pond, they pick of the weak and help keep a healthy ballance of bugs.
