A lucky screen grab I caught from '14. One of my favorite images ever.
That spider was on one of my milkweeds in a year I was rearing monarchs. I've video of this little wasp dragging it along the windowsill. 
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Feel free to reply to any comment by clicking the "Reply" button.that would be a kind of mud wasp, i suppose? they anaesthetize the spider, drag it into their mud nest & lay their eggs in or on it, so their offspring feeds on the spider. i see them around here all the time.
walklightly
Level 8
Mar 10, 2018
1
Yes, they paralyze the spider. I don't know what species these are. They're very small but powerful. I've seen them lop the legs off spiders too, all Boxing Helena style. This was the 2nd time I've caught this in action,but with a better camera.