Blastobasis lacticolella is a species of moth of the family Blastobasidae. It was introduced to western Europe and is now reported from the Netherlands, Great Britain, Ireland and Madeira.
The wingspan is 18–21 mm. Adults are on wing from May to June and again in autumn.
Larvae feed in a silken gallery, on a wide variety of unrelated food types, including leaf-litter, vegetation and stored products, such as:-