Black-tailed Red Sheetweaver or Red Grass Spider (Florinda coccinea)

It spent the longest time trying to get this picture. I found dozens of webs in the grass but each time I got close the spider would drop to the ground a disappear. I finally was able to get one to oblige my laying next to it for a picture. Since the webs are only a few inches off the ground it was a tricky shot to get.

Done