Do I have a new evolutional species of flying ants in my front yard? (with pics)?

Question:I have the most disgusting ant colony in my front yard's picket fence. Jesus christ they are so ugly! makes me itch all over.

Please someone tell me what they are! And is it good to get rid of them, more importantly, HOW?

as promised, here are links to the pics.
<a href="http://img386.imageshack.us/my.php?image... target="_blank"><img src="http://img386.imageshack.us/img386/3020/... border="0" alt="Free Image Hosting at www.ImageShack.us" /></a>

Answers:
It is hard to tell from the pictures but it is a possiblity that it is termites. Termites swarm once a year and are in large groups. Look up termites on web.