Dichomeris deltaspis is a moth in the Gelechiidae family. It was described by Meyrick in 1905. It is found in Sri Lanka. The wingspan is about 21 mm. The forewings are greyish-ochreous, strigulattd with ferruginous-brown and with a small blackish spot on the base of the costa and a dot beneath the costa near the base. The costal edge is pale rosy anteriorly, strigulated with blackish. There is a triangular blackish spot on the costa before the middle, reaching one-third across the wing. There is a transverse streak of ferruginous-brown suffusion from the dorsum before one-fourth, reaching more than half across the wing. The discal stigmata is small, ferruginous-brown, near together. There is also an undefined fascia of ferruginous-brown suffusion about three-fourth, terminating on the cost