Goldenrod Crab Spider (Misumena vatia) on Blue Columbine (Aquilegia brevistyla) with an unfortunate bumble bee which it managed to ambush. It disguises itself as part of the flower so it can ambush unsuspecting pollinators such as this one. Once the prey is captured, the spider injects its venom and (unlike many other spiders which store their prey for days) proceeds to eat it there and then. Then it returns back to the flower to wait patiently for its next victim. I saw this one on this one flower for a few days in a row! No web making required… The spider is even able to change its colour by secreting a pigment into its outer cell layer.