Notoaeschna sagittata is a species of Australian dragonfly of the family Aeshnidae, known as the southern riffle darner. It is endemic to eastern Australia, occurring south of the Hunter River, New South Wales, where it inhabits rapid streams.

Notoaeschna sagittata is a large, dark brown to black dragonfly with yellow markings. It appears similar to Notoaeschna geminata, the northern riffle darner, which occurs north of the Hunter River.

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