Glyphidocera lithodoxa is a moth in the Autostichidae family. It was described by Meyrick in 1929. It is found in North America, where it has been recorded from Maine, Massachusetts, Ontario, Pennsylvania and Texas.
The wingspan is 14-15 mm. The forewings are pale greyish-ochreous sprinkled grey. The stigmata are grey, the plical and first discal small, indistinct or obsolete, the plical rather anterior, the second discal moderately large, round and distinct. The hindwings are grey-whitish, towards the apex suffused pale grey.