Macrotristria lachlani, also known as the Cape York cherrynose, is a species of cicada in the true cicada family. It is endemic to Australia. It was described in 1992 by Australian entomologist Maxwell Sydney Moulds.
The specific epithet lachlani honours Robert Lachlan who collected the original specimens.
The length of the forewing is 42âÂÂ47 mm.
The species is known only from the Cape York Peninsula of Far North Queensland. The holotype was collected just south of the Hann River crossing, 80 km north-west of Laura. The associated habitat includes open forest and tropical eucalypt woodland.
Adults are heard from October to February, clinging to the trunks and upper branches of the eucalypts, especially Eucalyptus tetrodonta, uttering loud whining calls.