Thank you for sending me the ant lions. 
Most of them survived nicely and I still have about 5 in the eggs.  At first, we bought crickets and my mom and dad chopped the heads off to feed the ant lions.  Then we fed them grub worms.  As the weather got warmer, we found ants outside.  One of the ant lions has even made a cocoon, I think.  No one at the "Humanities Fair" had heard of ant lions before and so they were an intersting addition.  Here are some pictures...  

                                 Hannah