Eusynthemis tillyardi

Eusynthemis tillyardi is a species of dragonfly of the family Synthemistidae, known as the mountain tigertail. It is a medium-sized dragonfly with black and yellow markings. It inhabits coastal and mountain streams in south-eastern Australia

Eusynthemis tillyardi appears similar to Eusynthemis guttata which is found in alpine streams.