From IEEE Spectrum, a report on the latest EPFL research on bio-inspired flying robots:
Gliding is a very efficient way for getting from getting from point A to point B. Jumping is a very efficient way of getting into the air at point A, especially if there are a bunch of obstacles between point A and point B that it would be a good idea to be airborne to make it over. Grasshoppers have been doing this for, I dunno, probably like a hundred million years, and roboticists at EPFL are starting to design their robots with the same kind of jumping talents and expandable wings as our orthopteran friends.
The jumping part, and the crawling around on the ground part, is somewhat impaired by the bot's giant wings, which is why getting this whole folding thing figured out would be pretty cool. Here's the locust-inspired folding mechanism in action: