Compsoctena rudis is a moth in the family Eriocottidae. It was described by Edward Meyrick in 1921. It is found in Mozambique, South Africa and Zimbabwe.
The wingspan is 17âÂÂ18 mm. The forewings are light fuscous, thinly speckled with darker and with an obscure whitish dot on the end of the cell. The hindwings are grey.