Pycnobathra achroa 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 about . The forewings are whitish ochreous, rather densely irrorated (sprinkled) with fuscous. The stigmata are rather darker fuscous, indistinct, the plical obliquely beyond the first discal. The hindwings are light grey.[2]