I read an article online recently (probably WSJ) saying that there haven't been many fireflies come out yet, across the nation, due to the hot dry weather.
Well, after 3 weeks of nearly daily rain, I saw a few fireflies tonight, so maybe they're just late here.
We have seen fireflies since the end of June but not as many as I have previously. They are a great source of entertainment here because the goofy dog chases them and attempts to catch them. So far he has not been successful.