Ant Larva are covered in small hairs that are shaped like grappling hooks. This makes it possible for ants to hang larva from the walls and ceiling of the tunnel, instead of having to dig new tunnels when they run out of floor space. These hairs also make the larva stick together, so the ants can grab a clump of larva and carry them to safety if their nest is attacked, instead of trying to save the larva 1 by 1.
I stumbled upon a small nest of carpenter ants while digging through logs in my woodpile, and collected as many of the small larva that I could (which the worker ants just totally abandoned) After I brought them inside, I was going to take pictures of them to see if they had any mites on them, but then I thought of another idea. First I used a lens cleaning brush to get off as much of the dirt stuck to the clump of larva as I could. Next, I set up some cool shots by pinching the clump of larva into a tall thin wall, something I wouldn't have been able to do without their useful hairs. Next, I used a flashlight to light them up from behind. Click on the photo below then scroll down to see my cool results (and full set up):