Hemiarcha tetrasticta is a moth in the Gelechiidae family. It was described by Turner in 1919. It is found in Australia, where it has been recorded from Queensland. The wingspan is 10-12 mm. The forewings are whitish-brown more or less suffused with fuscous and with four conspicuous dark-fuscous spots, a median spot at one-sixth, the first discal at one-third, the plical before the first discal and the second discal before two-thirds. The hindwings are pale-grey.