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Stigmella svenssoni
Orange-headed Pigmy (Johansson, 1971)
Nepticulidae: Nepticulinae
87 / 4.059
Photo © Jim Swalwell,  08/09/2021 - East Winch Common (South)

Similar Norfolk Species
Red-headed Pigmy
Stigmella ruficapitella
Common Oak Pigmy
Stigmella roborella
Wingspan: 6-7 mm.
Flight: May and June.
Foodplant:   Oak.
Nat Status: Local
Verification Grade:  Adult: 4  Mine: R
Norfolk Status
Larger member of the 'ruficapitella' group.
One of a complex of three species, which can only be reliably separated by dissection of the genitalia.
Thought to be only a single extended generation, with adults in May and June.

Leaf-mine: July-Sept.
Long irregular gallery mine.

Verification Grade Comment: Adults must be reared and/or Gen. Det. to confirm.

Determination by Genitalia Examination (gen. det.) Required

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

Recorded in 10 (14%) of 74 10k Squares.
First Recorded in 1982.
Last Recorded in 2021.

Latest 5 Records
Date#VC10k Area
08/09/2021128TF61 - S.Lynn/Tottenhill
18/07/2020128TF62 - King's Lynn/Dersingham
25/10/2017+27TG32 - Stalham/Catfield
07/10/2017+27TG42 - Hickling/Horsey
28/08/2017+27TG41 - Acle/Hemsby
Further info: Stigmella svenssoni
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