Parornix loganella is a moth of the family Gracillariidae. It is found from Fennoscandia and northern Russia to the British Isles, Denmark and the Baltic States.
The wingspan is 9–11 mm.[1] The head is grey mixed with dark brown. Palpi white. Forewings blackish-fuscous; numerous costal strigulae, a spot in disc posteriorly, and two dorsal spots white; a black apical dot; cilia fuscous, terminal half white except on tornus, with a black subapical line. Hindwings are dark grey. The larva is pale green; dorsal line darker; head brown; segment 2 with four black spots.[2]
The larvae feed on Betula species. They mine the leaves of their host plant. The mine, larva and pupa cannot be distinguished from those of Parornix betulae.[3]