Uh waiter, there's a Cephalotes atratus in my soup

File this under, "Hmm.  I did not know that"

"Stephen P. Yanoiviak of the University of Texas Medical Branch was high in the forest canopy outside Iquitos, Peru, studying mosquitoes. Brushing some annoying ants off his arm, he noticed that they managed to land back on the tree trunk below. It turned out that the ants were capable of directed descent — they literally glided to their target.

.."The ants glide backwards but we don't understand the mechanisms," Dudley says. "They start tumbling and then swoosh... they land right where they want to be."

From ScienceMatters @ Berkeley
The next time you find yourself having a picnic in Peru, cover your wine glass.  You wouldn't want any gliding hymenopterans imbibing without an invite.