What is the meaning of Joel 1:4?

* The two F.O.G. Bibles & Commentary below are currently a work in progress.

What the devouring locust has left, the swarming locust has eaten; what the swarming locust has left, the young locust has eaten; and what the young locust has left, the destroying locust has eaten.

Berean Standard Bible (BSB)

What the swarming locust has left, the great locust has eaten. What the great locust has left, the grasshopper has eaten. What the grasshopper has left, the caterpillar has eaten.

World English Bible (WEB)

That which the palmerworm{H1501} hath left{H3499} hath the locust{H697} eaten{H398}{(H8804)}; and that which the locust{H697} hath left{H3499} hath the cankerworm{H3218} eaten{H398}{(H8804)}; and that which the cankerworm{H3218} hath left{H3499} hath the caterpiller{H2625} eaten{H398}{(H8804)}.

Strong's King James

What the chewing locust has left, the swarming locust has eaten, What the swarming locust has left, the creeping locust has eaten, What the creeping locust has left, the stripping locust has eaten.

The F.O.G*

The F.O.G Paraphrase

What is left of the palmer-worm, eaten hath the locust, And what is left of the locust, Eaten hath the cankerworm, And what is left of the cankerworm, Eaten hath the caterpillar.

Young's Literal Translation