Cedestis subfasciella is a moth of the family Yponomeutidae. It is found in almost all of Europe, except part of the Balkan Peninsula. The wingspan is 9–11 mm. Adults are on wing from April to October. The larvae feed on Pinus mugo, Pinus nigra and Pinus sylvestris. They mine the needles of their host plant. The mine starts at the tip and descends, full depth, towards the base of the needle. The mine is completely filled with granular frass. Pupation takes place outside of the mine in a cocoon on the ground. Larvae can be found from December to March or April.