Australian Emperor Dragonfly

Hemianax papuensis

''Hemianax papuensis'' is a species of dragonfly in the Aeshnidae family that can be found in Australia. It is black coloured with yellow dots along the tail.
Australian Emperor Dragonfly In rural New South Wales it is tough conditions for any dragonfly with these extremely prickly bushes. Australia,Australian Emperor Dragonfly,Geotagged,draogonfly,insect

Appearance

The Australian Emperor is a very large dragonfly, up to 70 mm long. Its abdomen is marked boldly in black and yellow. The thorax is greenish-grey. The head is yellow with a T-shaped mark on the forehead . The eyes are yellow-green. The leading edges of the wings are yellow. The insect habitually hunts fairly slowly, patrolling up and down like other hawkers, with short bursts at high speed.

Their wingspan is 11 centimetres . Males and females are similar.
Australian Emperor (Hemianax papuensis) A large dragonfly (90mm length?) with strong markings in black and yellow.
Resting on a Grevillea sp. shrub at the local school around midday.
Very cooperative.  Australia,Australian Emperor Dragonfly,Geotagged,Hemianax papuensis,Summer

Distribution

The Australian Emperor is found throughout Australia. In the state of Victoria, it has a split distribution: below about 600 metres in altitude, and above about 1200 metres, apparently because it avoids forested areas. It is also found in New Zealand, New Guinea, the Cocos-Keeling Islands, Java, Sumba and New Caledonia.

The Australian Emperor is widespread and common on larger bodies of water with tall vegetation on the banks. Like other hawkers, it may hunt far from water. It flies throughout the summer from September to May.
Apache I took this on a very hot afternoon at a place called the Black Duck Reserve a series of joined small lakes, at a small inlet there where dozens of Dragonfly's of at least 4 varieties! but trying to get a good shot of them when they are zig-zagging in front of you can be frustrating at the least, but with lots of patience and an old sigma 150-500 zoom using manual focus I sometimes get a half decent one.

                                       Mark Australia,Australian Emperor Dragonfly,Geotagged,Hemianax papuensis,Spring

Behavior

The Australian Emperor is notable as the dragonfly in which Motion camouflage was studied by Mizutani et al.: males of ''H. papuensis'' are fiercely territorial, and to approach and attack rivals, the males choose a flight path that keeps their image as seen by the target still with respect to a landmark point. The attacking dragonfly thus looms larger in the target's eyes, but otherwise does not seem to move until it is very close.

The males are very protective of their females. In case of intrusion of another individual, it will drive him away by engaging in a series of noisy air battles. Females lay their eggs under water.
Dragonflies  Australian Emperor Dragonfly,Hemianax papuensis

Habitat

The Australian Emperor is found throughout Australia. In the state of Victoria, it has a split distribution: below about 600 metres in altitude, and above about 1200 metres, apparently because it avoids forested areas. It is also found in New Zealand, New Guinea, the Cocos-Keeling Islands, Java, Sumba and New Caledonia.

The Australian Emperor is widespread and common on larger bodies of water with tall vegetation on the banks. Like other hawkers, it may hunt far from water. It flies throughout the summer from September to May.

References:

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Taxonomy
KingdomAnimalia
DivisionArthropoda
ClassInsecta
OrderOdonata
FamilyAeshnidae
GenusHemianax
SpeciesH. papuensis
Photographed in
Australia