Macro Spider

I went into the garden intent on getting some nice closeups of the Spring flowers.But on downloading my shots I soon realized that I had a visitor among them?
I had fitted an extension tube to my 1:1 Sigma macro lens so as to get 2:1 size on my D3 FX @ 11 mp!
The set up was 1/160 sec. @f36 @ ISO 200.
With the crop I think this is possibly 5-6 times life size?