The military is developing technology that, when surgically implanted into an insect, would allow us to control its flight:
Instead of attempting to create miniature robots as spies, researchers are now experimenting with developing insect cyborgs or “cybugs” that could work even better. So far scientists can already control the flight of moths using implanted devices.
Originally researchers sought to control insects by gluing machinery onto their backs, but such links were not always reliable. To overcome this hurdle, the Hybrid Insect Micro-Electro-Mechanical Systems program is sponsoring research into surgically implanting microchips straight into insects as they grow, intertwining their nerves and muscles with circuitry that can then steer the critters. As expensive as these devices might be to manufacture and embed in the bugs, they could still prove cheaper than building miniature robots from scratch.