437a Swammerdamia passerellaa
Single-brooded, overwinters as a pupa
Recorded larval stage July to September
Adult forewing - around 7.25 to 9.25mm. Flies late May to June
Larval foodplants : Feeds on the leaf surface under a web on Dwarf birch (Betula nana)
Not currently available on this website. For examples of a larval web and adults see:-
http://www.ukmoths.org.uk/