This judgment of the locusts is to continue
for five months. Revelation 9:10 " And they
had tails like unto scorpions, and there were
stings in their tails: and their power was to
hurt men five months."

It is the same length of time that the flood
lasted [Genesis 7:24]. And about the length
of time natural locusts appear - May thru
September.

This Judgment is the first of three "woes".