It takes five years for these insects to complete their lifecycle, spending all but a few weeks of that time underground. Unlike the massive, all-at-once, emergence of “periodical” cicada species in the central and eastern US that emerge every 13 or 17 years, Salmonfly Cicadas are an “annual” cicada, meaning that individuals emerge and are present every year.
Size: 16 mm – 22 mm
Photo by: Gage Poore on 7/2/22 near Lolo, MT