I don't think that's relevant to this article, unless you consider fireflies light pollution.
My firefly stories are from the late-70s and early-80s, on the south side of Chicago, as urban as you can possibly be, and every summer night all the kids would be outside catching fireflies and letting them go. I live on the same sort of a street now, still in Chicago, and I can't remember the last time I saw a firefly.
edit: my surroundings haven't gotten brighter. When I was a kid, there was literally a Sears a block away. Lousy with fireflies.
That there were fireflies all over the brightly lit urban area, confused and unable to mate, is not inconsistent with the notion that man-made lights are hurting fireflies.
We had them until year-before-last when the house diagonally across from us hired "Mosquito Joe" poison-spraying service. They didn't disappear with the arrival of LEDs about 5 years ago.
My firefly stories are from the late-70s and early-80s, on the south side of Chicago, as urban as you can possibly be, and every summer night all the kids would be outside catching fireflies and letting them go. I live on the same sort of a street now, still in Chicago, and I can't remember the last time I saw a firefly.
edit: my surroundings haven't gotten brighter. When I was a kid, there was literally a Sears a block away. Lousy with fireflies.