Eusynthemis rentziana is a species of dragonfly of the family Synthemistidae,[3][4] known as the swift tigertail.

[5] It is a slender, medium-sized dragonfly with black and yellow markings.

[5][6] It inhabits streams in eastern Australia[7] Eusynthemis rentziana appears similar to Eusynthemis guttata which is found in streams of south-eastern Australia.

[5]