I love the idea of this poem. It almost seems as if the person here imagines the spiders voice...or maybe thats just me. A few of the middle/endish lines are a bit comfusing or out of rhythm but overall its terific.

I'm reminded a little of the spider and the fly. (but just because of the narrative form, which I think is quite creative) There are bits where I'm not sure about the rhythm, but I'd have to go back and actually count, but overall it's really good.