Some species of cicada do come out every 17 years, but others have different life cycles and time periods for when they come out.
2 yearsAs long as it wants to. :o)or for 17 yearsA cicada can live for 17 years.
Cicada
You probably mean cicadas that remain underground for 17 years, emerge, lay eggs and die
A cicada lives underground for 13 to 17 years then come up and sing then the ladies cicadas mate to mate,have babies,then DIE.
it takes about 17 years.
every 102 years
Tibicen cicads are more common, as thet hatch every 3 years, but the magicicada emerge by the millions even billions every 13 to 17 years or so
Cicadas have a 17-year or 13-year life-cycle, depending on the variety.
The Cicada
One species of cicada can live for 17 years, but others have shorter life spans.cims.nyu.edu/~eve2/cicadas.pdf
Septendecim is a variety of North American cicada. They are colloquially called locusts, but this is a misnomer as locusts are types of grasshoppers. The cicada is known for the 17-year hibration/breeding cycle that sees mass birthings every other decade.
"The cicada lies dormant for 17 years before they emerge to make a lot of noise and fly into things."