Wiggly thing - fly larva?
Baby Backswimmer - a perfect minature version of its parents, but about 3mm across
What's this? A Caddis Fly larva? The rolled up thing it lives in is about 35mm long. Comically, it swims around the pond inside its little tube. If you know what it is, please leave a comment
More photos on Flickr
If you have a garden pond, all this can be yours for about £15. Do it, you won't regret it!
photos taken with Canon Powershot A640