I'm going to guess termites (not moths) attracted to the light, following a rainfall.

 

The cobra???

Termites for sure,they only fly for an hour or so then their wings fall off and they run away to find some wood to chew on. I parked my pickup under an outside light when I went to use it I noticed a few termites running round and a pile of wings. If you have any in the house shut off the light and open an outside one. They will immediately fly out to the outside light.

They really are horrible things but not much, if anything, you can do about them, I've had several dinners at outside restaurants totally ruined by thousands of the damn things swarming around our tables. The frogs like them, they seem to appear from nowhere and have a feast.