I grew up in California and they aren't there, but I moved to WV almost 7 years ago and now live in Maryland and see them all the time in the summer, but lacking the rain lately, they aren't as numerous as they have been. I love sitting outside and watching them. Seeing them in large numbers the first time at a wetland area, I began to believe the twinkling Christmas lights were designed by someone missing the twinkle of the fireflies!