Dorycnopa orthodesma is a moth of the family Gelechiidae. It was described by Oswald Bertram Lower in 1901. It is found in Australia, where it has been recorded from New South Wales.[1]
The wingspan is 8–12 mm. The forewings are white with three moderately broad suffused pale ochreous equidistant fasciae, irregularly edged. The first from one-sixth of the costa to one-sixth of the inner margin, the second before the middle of the costa to before the middle of the inner margin, and the third from five-sixths of the costa to two-thirds of the inner margin. There is a suffused pale ochreous line along the termen. The hindwings are grey whitish in females andblackish in males.[2]