Narthecoceros logica is a moth in the family Gelechiidae. It was described by Edward Meyrick in 1910. It is found in Sri Lanka.[1]
The wingspan is 13–14 mm. The forewings are fuscous whitish, sometimes partially and variably sprinkled with dark fuscous and with a suffused dark fuscous streak along the costa from about one-fourth to the apex. There are two small cloudy dark fuscous spots transversely placed at the end of the cell. The hindwings are grey.[2]