Eusynthemis nigra
Eusynthemis nigra is a species of dragonfly of the family Synthemistidae,
known as the black tigertail.
It is a medium-sized dragonfly with black and yellow markings.
It inhabits streams in eastern Australia
Eusynthemis nigra appears similar to Eusynthemis brevistyla which is found in streams of south-eastern Australia.