Don't call this guy 'yellow'!

Yellow-bellied Bee Assassin, Photo from Ned Harris

According to BugGuide.net, this bug "pounces on Honey Bees and other pollinating insects. It holds the captive in its powerful legs, thrusts its cutting beak into the victim's back, injects an immobilizing digestive agent, then sucks out the body juices." Yikes.