Gracillariidae : Gracillariinae
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Photo © Jim Swalwell,  31/05/2020 - Syderstone Common NWT

Similar Norfolk Species
Caloptilia robustella
Shaded Oak Stilt
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Caloptilia alchimiella
Oak Stilt

(Scopoli, 1763)286 / 15.008
=Yellow-triangle Slender

Norfolk status
Difficult to distinguish from the recently separated C. robustella Determination by Genitalia Examination (gen. det.) Required.

please record all undetermined specimens as the aggregate Caloptilia alchimiella/robustella

Leaf-mine: July - Oct.
Narrow gallery leading to a squarish or triangular blotch. Then forms up to three successive cones by folding the lobe of a leaf downwards.
Note: You cannot separate these from C. robustella unless you examine the pupa or breed out.

Determination by Genitalia Examination (gen. det.) Required

Mine: Moth needs to be reared and, in some cases, possibly dissected.

Recorded in 22 (30%) of 74 10k Squares.
First Recorded in 1874.
Last Recorded in 2024.
Additional Stats

Caloptilia azaleella | Caloptilia alchimiella/robustella >

Determination
List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10kGeneral Area
07/05/2024128TF62Sandringham
21/08/2023128TL78Weeting Heath (Gravelpit Wood)
09/08/2023128TL78Weeting Heath (Gravelpit Wood)
07/08/2023128TL78Weeting Heath (Gravelpit Wood)
17/08/2022128TF92North Elmham
Show Details | 1990 to 2023 | 2000 to 2023 | Graph Key
Express Record Caloptilia alchimiella
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Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Wingspan: 10-13mm
Flight: May - July (possibly as two separate broods)
Foodplant:   Oak
Nat Status: Common
Verification Grade:  Adult: 4  Mine: R
 Immature Adult   [Show Flight Times]

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Underlying maps using Digital Map Data © NOLA™ 2024. © Lepidoptera UK - Jim Wheeler - Norfolk Moths 2007 - 2024. Data © NOLA™ 2024
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