Trithemis aurora, the crimson marsh glider, is a species of dragonfly in the family Libellulidae. It is a medium-sized dragonfly that is commonly found in weedy tanks and ponds, marshes, channels, and slow flowing streams and rivers in the lowlands and mid-hills. It breeds in streams, rivers, canals, ponds and tanks. It is found commonly and widely distributed in the Oriental region throughout the year.