Hemicordulia koomina is a species of dragonfly in the family Corduliidae, known as the Pilbara emerald. It has been found in the Pilbara region of Western Australia. Hemicordulia koomina is a small to medium-sized, black and yellow dragonfly with long legs. In both males and females the inboard edge of the hindwing is rounded. Gallery See also List of dragonflies of Australia References Corduliidae Odonata of Australia Insects of Australia Endemic fauna of Australia Taxa named by J.A.L. (Tony) Watson Insects described in 1969