2018 will be a relatively quiet year for periodical cicadas.
Brood VII will emerge in upstate New York, but this brood has undergone a severe decline over the last few generations, and few large populations are expected. Among 17-year broods, four-year late Brood III stragglers may emerge in Illinois and Iowa, but since Brood XI is extinct, no four-year early Brood XI stragglers are expected. Among 13-year broods, four-year late Brood XXII stragglers could emerge. No four-year early 13-year cicadas are expected.