Little Rock, Ark (KATV) – A group of 15 states, including Arkansas, is set to experience a rare cicada emergence this May, according to our content partners, K8 News. Named brood XIX, this particular cicada group emerges only once every 13 years. Arkansas State’s chair of Biological Sciences, Tanja McKay, says they will be so plentiful that you could grab them off trees in buckets.