The Moths of Suffolk
437 Swammerdamia caesiella, (Hübner, 1796)

National Status : Common

Local Status : Resident (SMP Status 3)

Distribution and abundance : Common, predominantly in Sandlings and Brecks

Habitats : Heathland, woodland, scrub, fens and gardens

Flight Period : Double-brooded; May to June and late July to early September

Larval foodplants : Birch (Betula)

Morley's Final Catalogue : By no means common, on birch. Bentley Woods in late April 1895 (Mly); Ipswich 1931 (Whit); Orford in July 1902 (Gibbs); Aldeburgh in 1892 (Ctw); Leiston (Grey), Blythbro Wood.

Wingspan details : Wingspan 9-13mm

Identification

Confusion species
    AdultSwammerdamia passerella
Swammerdamia pyrella
Swammerdamia compunctella
Paraswammerdamia albicapitella
Paraswammerdamia nebulella

Compare confusion species
    Adult

Click to view full size image
Eye, Suffolk (25.vi.2008) © Paul Kitchener

Flight chart
JFMAMJJASOND
29 12 6 100 1

Life history chart
JFMAMJJASOND
pupa pupa pupa pupa imago ovalarvaimago larvapupa ovapupaimago larva larvapupa pupa pupa

Further Photographs

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Larval spinnng and windowing on upperside of birch leaf - Thorpeness, Suffolk (10.x.2010) © A Prichard
Larval spinnng and windowing on birch leaf - unusually on underside of leaf - Thorpeness, Suffolk (10.x.2010) © A Prichard
Ipswich, Suffolk (vii.2008) © Neil Sherman
 
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Tangham, Suffolk (8.v.2009) © Lee Gregory