At woodland edge in field that is 30 yards from a spring-fed slough, 50 yards from a rock bottom stream, and 100 yards from a pond. Flash pattern was a "stutter" of quick flashes about 1 second in duration with 3 seconds dark in between. Temperature 63 degrees after thunderstorm cleared out.
Size = 11 mm
Found on the rug near the open top orchid tank I had placed a larval pyractomena (found crawling on the floor indoors). Going to add these photos to that ID from a few weeks ago as well for reference.