Ha, wwh! We crossed! You listed one of the URLs that I had--but the photographs there show just about everything you'd have to know to go out hunting antlions--not that you should remove them from their habitat, but it is fun watching one of 'em try to chomp off the end of a pine needle.

They're related to:

Owl flies.

Not that I know a daburn thing about owl flies.

And antlions full grown (you can see from the picture) look a little like dragonflies, but antlions are supposed to be not very skillful fliers according to what I read today.

They show their ferocity in their inverted hills which are referred to as pits--but I don't think pit is a good name for them--it doesn't seem to show the inverted cone nature of the way the hill looks.