Gracillariidae : Gracillariinae
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Photo © Dave Appleton,  20/05/2016 - Cranwich Heath - male (gen det)

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

Jäckh, 1972287 / 15.009
=New Oak Slender

Norfolk status
Very similar to C. alchimiella, shorter and less clearly defined yellow blotch on the forewing. Only reliably separated by dissection.

Please record as the aggregate Caloptilia alchimiella/robustella if uncertain.

Leaf-mine: May - July, September - October.
Short gallery becoming a blotch. Later in up to three cones at the edge of the leaf.
Note: You cannot separate these from C.alchimiella 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 32 (43%) of 74 10k Squares.
First Recorded in 1989.
Last Recorded in 2024.
Additional Stats

Caloptilia alchimiella/robustella | Caloptilia stigmatella >

Determination
Caloptilia robustella Weeting Heath 27.v.2013 slide IB402 (I. Barton)
List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10kGeneral Area
06/09/2024128TF63Dersingham
06/09/2024128TF92North Elmham
02/09/2024127TG13Hempstead
01/09/2024127TG13Hempstead
27/08/2024128TF92North Elmham
Show Details | 1990 to 2024 | 2000 to 2024 | Graph Key
Express Record Caloptilia robustella
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Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Wingspan: 10-13mm
Flight: Two Generations. Apr-June. Jul-Sept.
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™ 2025. © Lepidoptera UK - Jim Wheeler - Norfolk Moths 2007 - 2025. Data © NOLA™ 2025
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