Will you walk into my parlour?

"Will you walk into my parlour?" said a spider to a fly;
" 'Tis the prettiest little parlour that ever you did spy.
The way into my parlour is up a winding stair,
And I have many pretty things to shew when you are there."
"Oh no, no!" said the little fly, "to ask me is in vain,
For who goes up your winding stair can ne'er come down again."
- Mary Howitt, 1829

The photo below is more like what I saw initially - a dead looking fly or bee on a flower. It was only after looking closer, suspecting what I might see, that I spotted the Goldenrod Crab Spider.

I find I've written quite a few blog posts about crab spiders.