The comments under the article make interesting reading. Here's a sample -
"This made my day. Thank you ladies. Two rich ladies on their way home from the mall. Stung 600 times. Mother Nature rocks!
I have no problem with this happening to wealthy, liberal housewives. I'm ecstatic".
That was my first thought as well, but in this case it actually was bees. (the link has a picture of the break in the hollow tree w/ hive inside)Sounds/looks more likely hornets vs. honeybees, but why drill down when there is sensationalism to be broadcast?