About Hemigomphus gouldii (Selys, 1854)
Hemigomphus gouldii, formally described by Selys in 1854, is a species of dragonfly belonging to the family Gomphidae. It is commonly known as the southern vicetail. This is a small dragonfly that is black and yellow in color. It is endemic to eastern Australia, and lives in permanent streams and rivers there.