Main: (Yponomeutidae / Yponomeutinae)
16.016 [B&F: 0437a] Swammerdamia passerella (Zetterstedt, 1839)


Notes: 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.

Flightime guide

Distribution Map

Historical distribution at tetrad resolution
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Record Density

As above but the larger the symbol, the greater the number of records
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