Armagomphus armiger
Armagomphus armiger is a species of dragonfly of the family Gomphidae,
known as an armourtail.
It is the only known species of the monotypic genus Armagomphus.
Armagomphus armiger is endemic to south-western Australia, where it inhabits streams and rivers.
It is a small dragonfly with black and yellow markings.