Andrew of Caesarea
Because of what has already been said, and what follows, some understand the locusts as the punishing angels of God. In each expression they are depicted allegorically, either to inspire fear, or because of their swiftness, or because of the punishment suffered in Gehenna by those who deserve it.
But I think it more probable that these locusts are evil demons, ready to wage war against us. They wear gold-like crowns on their heads as signs of victory.
We too will be crowned with such crowns if we submit to them, having attained a wicked victory through pleasure.