ST. LOUIS – With 13-year cicadas now swarming ... She is among more than 225,000 now in the app’s user database. She uploads cicada photos and locations. The app led FOX 2 to a cicada hot ...

Viewer-submitted photos show dozens of these insects ... will co-emerge with a midwestern brood of 17-year cicadas, Brood XIII. The St. Louis area is expected to mostly see the 13-year-brood.