NotoaeschnaNotoaeschna is a genus of dragonflies in the family Aeshnidae,endemic to south-eastern Australia.Species of Notoaeschna are large, dark brown to black dragonflies with yellow markings.SpeciesThe genus Notoaeschna includes the following species:Notoaeschna geminata – northern riffle darnerNotoaeschna sagittata – southern riffle darner