Nannophya occidentalis, also known as the western pygmyfly,[3] is a species of dragonfly in the family Libellulidae.

[4][5] It is found in boggy seepages and swamps of south-western Australia.

[6][7] Nannophya occidentalis is a small dragonfly with black and red markings similar to Nannophya dalei, the eastern pygmyfly, which is found in south-eastern Australia.

[3]