Kentucky Cicada Map 2025. Cicadas rapidly vibrate these tiny membranes to produce sound, and the tymbals act like two speakers that can perfectly overlap sound waves, pumping up the volume. To determine the states that will be most impacted by the 2025 cicada double brood, researchers calculated the percentage of counties in which either brood xiii or brood xix is expected to emerge.
Cicadas rapidly vibrate these tiny membranes to produce sound, and the tymbals act like two speakers that can perfectly overlap sound waves, pumping up the volume. Adult periodical cicadas from brood xix are now completing its emergence as the brood is out in full force in states across the midwest and southeast, according to cicada safari, a cicada.