I found a pretty tiny queen ant today at the usual location I've been checking out. She's about 3.5 mm long. I somehow got lucky enough to find her taking her wings off and beginning to burrow.
Found her in the woodlands near Washington D.C at approximately 1600. Attached are pictures: https://goo.gl/photos/2pzMhYWhtEtA3nVS8
Thank you in advance!