Swammerdamia passerella

Checklist Number
16.016 [B&F: 0437a]

Verification
Record will require further evidence, at least a good photograph, unless CMR is aware recorder has confidence in identification

Classification

Family:Yponomeutidae
Subfamily:Yponomeutinae
Genus:Swammerdamia
Species:passerella
Authority:(Zetterstedt, 1839)

Vulnerable (proposed as a future Red Data Book species) on mountains at 300-700 m in the Highlands of Scotland (MBGBI Vol 3). Unlikely to be recorded in Hampshire or on the Isle of Wight. Wingspan 8.5-11 mm. Larva mines leaves of Dwarf Birch, beneath a silken web, often several together, over-wintering as a pupa in a cocoon.