Yponomeutidae

16.015 Birch Drab Swammerdamia caesiella (Hübner, 1796)

Common

Similar species:

Forewing: 4.5 to 6mm

Habitats: Deciduous woodland, birch scrub, heathland or wherever else the foodplant is found.

Habits: The moth comes to light.

Foodplant: The larva spins a silk pad on the upper surface of a birch leaf, causing it to slightly contract. Dew makes the silk pad visible. Pupation takes place in the leaf litter in a dense white cocoon.