Not sure if they make a dent in the 'squito population out here. But I welcome them nonetheless. My biggest issue is that they, lately, have decided to "cruise" my driveway. When I get home from work and I open the garage door they make a run for under my brewing counter. Found one dried up in a corner today. I hope to avoid it, but they hide from a perceived predator and I cant keep em out. I love hearing them in the night after a rain...