Pacific Northwest. And fair, I should have said east coast, not just south.
There are fireflies in every state except Hawaii. There are more east of the Mississippi and in the south generally, but anywhere with water has some (including river valleys in arid states).
alt Hacker News
There are fireflies in every state except Hawaii. There are more east of the Mississippi and in the south generally, but anywhere with water has some (including river valleys in arid states).