The Butterfly Perch (Caesioperca lepidoptera), is a species of sea bass in the subfamily Anthiinae and of the family Serranidae. It is found in the eastern Indian Ocean, and south west Pacific Ocean including southern Australia, and New Zealand.
The butterfly perch is a deep-bodied species with a slightly pointed snout. Both dorsal fins are long and low with no gap between them, and the tail is lightly forked. Its length is between 6 and 12 inches. Coloration is a pale fawn-pink, tinged with bright blue on the head and fins, and a conspicuous black spot in the middle of each flank. The entire body and fins are covered with small close-set dark spots, only noticeable on close inspection.
Food consists of a wide range of mid-water planktonic animals, and this species forms loose feeding schools over rocky reefs.