Pompilidae (Spider Wasps)
Spider Wasps are usually black, sometimes with patches of yellow or red. They have stingers, which they use to paralyze spiders. The spider is then dragged back to its den or to a specially constructed chamber in the ground, whereupon a single egg is laid on the spider, and the chamber is sealed. The wasp larvae are parasitoid on spiders. Spider wasps are fairly common visitors to flowers.