“And they had tails like unto scorpions, and there were stings in their tails: and their power was to hurt men five months.”
King James Version (KJV)
9:10 And they have tails like scorpions - That is, each tail is like a scorpion, not like the tail of a scorpion. To hurt the unsealed men five months - Five prophetic months; that is, seventy - nine common years So long did these calamities last.
Re 9:10 And they had tails like unto scorpions. They stung terribly, and left a string in their path.