Larva (caterpillar) of citrus cutworm, Egira (=Xylomyges) curialis, chewing on citrus blossoms, which will drop without producing fruit.

Damage to blossoms showing larva chewing holes, 1X; . Credit: Jack Kelly Clark
Larva (caterpillar) of citrus cutworm, Egira (=Xylomyges) curialis, chewing on citrus blossoms, which will drop without producing fruit. Credit: Jack Kelly Clark