Camacinia othello (Black Knight)

Native to Indonesia, Papua New Guinea, the Solomon Islands, and the Northern Territory and Queensland in Australia, this is an impressive, large dragonfly with a wingspan of 115 millimeters and an overall length of around 65 millimeters.

Adult males have dark markings on the forewing and hindwing covering around one third to one half of each wing. The females [the only illustration in Theischinger/Hawking] differ substantially, with a light brown stripe along the leading edge of each wing to just beyond the node, and light brown marks on each wingtip.

Sadly I have no female example but the males, snagged in the Cairns Botanic Gardens, were quite a thrill.

male
in flight