Ceriagrion cerinorubellum, commonly known as the orange-tailed marsh dart or bi-coloured damsel, is a medium-sized damselfly in the family Coenagrionidae. It is a very common species of damselflies in Asia.
This species can be found in Bangladesh, China, Indonesia, India, Sri Lanka, Myanmar, Malaysia, Philippines, Peninsular Malaysia, Singapore, Thailand, Vietnam.
It is a medium-sized damselfly with greenish eyes, bluish above. Its thorax is yellowish green. Segments 1,2 and basal half of three and apical half of 7 to 10 are in brick red color. Other segments are black on dorsal half and pale blue on the ventral half. Female is similar to the male; but more robust and with dull colors.
It breeds in weeded ponds, marshes and other stillwater forms.