Flashing together in 4-6 flashes, before taking about 5-6 seconds off. Glow shown in first 2 pics, and one of the fireflies partaking in pics 3 and 4
Found on the edge of a small patch of woods, I don’t know what species
Confirmed P. scintillans in NC! The photo is of a brachypterous female. mGDD starting from Feb 1 was 1542. Male also found: https://www.inaturalist.org/observations/220868268
Dozens of individuals synchronously flashing within a upland forest. 71 degrees Fahrenheit and mGDD starting from Feb 1 was 1489.
thin eyebrow and red eyes, I am not sure