About Eusynthemis nigra (Tillyard, 1906)
Eusynthemis nigra is a species of dragonfly in the family Synthemistidae, commonly known as the black tigertail. This is a medium-sized dragonfly that has black and yellow markings. It lives in streams located in eastern Australia. Eusynthemis nigra looks similar to Eusynthemis brevistyla, a related dragonfly that inhabits streams in south-eastern Australia.