Is a species of bird in the Dicaeidae family. It is found widely around Labuan Island. Its natural habitats are subtropical or tropical moist lowland forests, subtropical or tropical mangrove forests, and subtropical or tropical moist montane forests. The male is blue with an orange belly and rump. Dicaeum trigonostigma melanostigma. Delacour (Birds of Malaysia, 1947) cited a name Dicaeum trigonostigma melanostigma, but because no description accompanied this name, and no type was identified, it was published as a nomen nudum.