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Yponomeutidae : Yponomeutinae
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Swammerdamia caesiella
Photo © Patrick Clement,  Devils Spittleful Rifle Range, Worcestershire. May 7th 2014. Gen Det, female.

Immature stages
Swammerdamia caesiella Swammerdamia caesiella Swammerdamia caesiella

Similar West Midlands Species
Swammerdamia pyrella
 Swammerdamia pyrella
Paraswammerdamia albicapitella
 Paraswammerdamia albicapitella
Paraswammerdamia nebulella
 Paraswammerdamia nebulella
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Swammerdamia caesiella
(Hübner, 1796)437 / 16.015

Fairly common resident.

Betula spp. with larva feeding in July and September under a web on the upper side of a leaf.

Verification Grade Comment: Poorly marked / worn examples Grade 4

Determination by Genitalia Examination (gen. det.) Required

Recorded in 60 (43%) of 140 10k Squares.
First Recorded in 1874.
Last Recorded in 2024.
(Data up to end 2024)
Additional Stats

Wingspan: 9-13mm
Flight: Two generations. May/June and July to September.
Foodplant:   Birch
Nat Status: Common
Verification Grade:  Adult: 4
< Pseudoswammerdamia combinella | Swammerdamia pyrella >
List Species Records   [Show All Latest]
Latest 5 Records (data up to end 2024)
Date#VC10k Area
10/10/2024+VC39 - StaffordshireSO89 -
10/08/20241VC40 - ShropshireSJ71
31/07/20241VC39 - StaffordshireSO88
28/07/20241VC37 - WorcestershireSP06
23/07/20241VC37 - WorcestershireSO66
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