Macromia annaimallaiensis

It is a medium-sized dragonfly with emerald-green eyes. Its thorax is reddish-brown, with a dark green metallic reflex. There is a narrow oblique stripe on each side in citron-yellow. Abdomen is black, with the yellow annules narrower compared to Macromia indica. Segment 2 has a very narrow sub-basal annule which is broadly interrupted each side sub-dorsally. Segment 3 has a narrow annule. Segments 4 and 5 have a pair of small dorsal spots at the jugal suture. Segment 6 usually unmarked. Segment 7 has a basal annule. Segments 8 and 9 are unmarked. Segment 10 has a mid-dorsal carina as in Macromia indica. Anal appendages are black.^[4]

It can be distinguished from M. indica by the very different markings of abdomen. These abdominal markings are similar to those of M. ellisoni; but that insect has a well-marked citron-yellow humeral stripe which is very narrow here.^[4]

It is commonly found hawking on the banks of rivers south of Palakkad Gap. It breeds in hill streams.^[4][5]

• List of odonates of India
• List of odonata of Kerala