Arenopsaltria pygmaea, also known as the pygmy sandgrinder, is a species of cicada in the true cicada family. It is endemic to Australia. It was described in 1904 by English entomologist William Lucas Distant.
The species has a forewing length of 14âÂÂ18 mm.
The species is found in Western Australia from the Murchison River district near Geraldton south-east to near Corrigin. It occurs in tall heathland habitats on sandy soils.
Adults may be heard from November to January, clinging to the branches of heath vegetation, uttering continuous, high-pitched, hissing calls.