- I have to disagree that the spider wasp is "unlikely to use its venom unless extremely provoked" - at least in our experience. I was just filming my 3-year-old as he walked across the lawn and he stepped on or near a spider wasp that was crawling on the grass. Within a second it had stung him 3 times on the ankle and leg, and he screamed like I've never heard him scream. And this is the boy who tells me quite calmly when he's had a bee sting. Since spider wasps crawl about on the ground, it seems like it must be a relatively common occurrence that they sting barefoot humans who happen their way.