Dolomedes triton

[BrianS]

The pond close to my house is full of these. I used to keep them alot when I was a kid
http://i6.tinypic.com/1432kn4.jpg
http://i5.tinypic.com/1432mj8.jpg
http://i6.tinypic.com/1432npe.jpg

[Gigas]

I'm assuming water spiders are a seasonal species?
nice pictures:)

[BrianS]

Yes they seem to be although some do overwinter but they are usually the young