We actually saw all four of the south Texas white-skippers. Here's Erichson's.
And here's Turk's-cap White-Skipper and the more common Laviana White-Skipper.
A few weeks earlier I had walked this road and had seen lots of globemallow which had been absent during our prolonged drought. Globemallow is the host plant for Red-crescent Scrub-Hairstreak and they were out today.
I would like to have spent more time with the butterflies but this was a birding trip. I'll have to get back up here in a few days.