Marcia found this colony of fungus gnat larvae on the move on our car port this morning. At first she thought it was a leaf and then maybe a snake skin. Then, it was moving from left to right. It is like there was a leader, and they were all following him. She called a pest control company, and I took pictures and emailed them over. They had never seen anything like it. She emailed her friend in TR, and she got on the Internet and found pictures that looked exactly like these. Here is the What's That Bug page has about them. Here is the Google link for images of the fungus gnat larvae.