Yponomeutidae

16.016 Dwarf Birch Drab Swammerdamia passerella (Zetterstedt, 1839)

pRDB2

Similar species:

Forewing: 4 to 5.5mm

Habitats: The higher slopes of mountains.

Habits:

Foodplant: The larva mines a leaf of Dwarf Birch. It later feeds on the uppper surface of the leaf under a web. The web may contain two or three larvae. It pupates in the leaf litter in a dense white cocoon.