Was staying at an AirBnB. Previous night had issue with nest of yellowjackets, so all exterior and interior lights were turned off the evening of June 30th. About 9:45 PM, I put the phone on charging dock. The dock has a small green strip that lights up for about 10 seconds when you place a device on the dock. Not long after this light turned off, I saw a steady green light dancing on the ceiling for at least a minute. During this time, I grabbed my phone off of the charger and tried to record a video. I could see a blurry green dot moving on the screen, but the video did not save. It took a little while to figure it out, but he was doing a mating dance for my charging dock. He'd dance around the room, I'd take my phone off the charger and try to get a video, he'd stop, I'd put my phone back on the charger, he'd start dancing again. This happened 3 or 4 times, and somewhere in between I looked up fireflies that don't blink, but stay solid. When I realized this was likely a very rare occurrence, I waited until I knew where he had landed, turned on the overhead light so I could find him, scooped him into a dustpan I had found, and placed him on the deck outside to find a real mate. At the time, I did not know these generally fly very low and on a forest floor. He likely came from the pine trees across the gravel road. If I had looked over that way, I may have seen additional fireflies. It was my last night there, so now I'll never know for sure, but maybe you can observe. In the house, he had stayed close to the ceiling, and flew up and down, and in tight circles. I also took a picture of him.