I've noticed that areas in parks that have been left as "prairies" (basically, not mown and wildflowers allowed to bloom) have oodles of fireflies, and mown law

I've noticed that areas in parks that have been left as "prairies" (basically, not mown and wildflowers allowed to bloom) have oodles of fireflies, and mown lawns have almost none. I bet you'd get a ton of fireflies back if you left a small patch of your yard with longer grasses and wildflowers. People get annoying at having even areas of less manicured yards, but you'll get a ton more lightning bugs, lady bugs, butterflies, bumble bees, etc.