Aethriamanta brevipennis, scarlet marsh hawk, is a species of dragonfly in the family Libellulidae. It is widely distributed in South and Southeast Asia and also occurs in the Solomon Islands.
Two subspecies may be recognized:
It is a small dragonfly with dark reddish-brown eyes. Its thorax is dark chocolate-brown on dorsum and humeral region, paling on sides. Wings are transparent, tinted with deep golden-amber at base. Abdomen and anal appendages are bright red. Female is similar to the male; but greenish-yellow in colors.
It breeds in weedy ponds and lakes.