Sha Lo Tung is one of the butterfly hotspots in the eastern New Territories, with a rich variety of butterfly species. More than 100 butterfly species have been recorded there. Many of them have conservation value, such as Common Birdwing (Troides helena) and Golden Birdwing (Troides aeacus) which are protected by law. Sha Lo Tung is also one of Hong Kong's very few habitats and breeding grounds for Yellow Coster (Acraea issoria).