Gracillariidae : Gracillariinae
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Photo © Ben Sale,  Bishops Stortford Cemetery, Hertfordshire (24/03/21)

Immature stages

Similar Herts & Middlesex Species
Caloptilia betulicola
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Caloptilia elongella

(Linnaeus, 1761)282 / 15.004

General comments:
Wild caught adults will normally require genitalia dissection to distinguish them from C. rufipennella and C. hemidactylella.

Records made prior to 1947 might refer to the next species (C. betulicola) as until that year it was unclear if these were separate species or not.

Hertfordshire Notes:
Local. The apparent restriction of this species to the south-east of the county is likely to be real as it has been searched for assiduously in other areas to no avail. Availability of native Alder is a contributing factor.

Middlesex Notes:
Local, but likely to be more distributed wherever the native Alder Alnus glutinosa grows. The records suggest that this species has become more frequently encountered in the past thirty years or so.

Determination by Genitalia Examination Required

Mine: Either the leaf or a good photograph required

Recorded in 21 (51%) of 41 10k Squares.
First Recorded in 1890.
Last Recorded in 2023.
Additional Stats

Caloptilia populetorum | Caloptilia betulicola >

List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
12/10/2023120TL12 - Hitchin (S) / Whitwell
07/07/2023120TL31 - Hertford
01/08/2022121TQ08 - Uxbridge
16/07/2022120TQ09 - Watford / Rickmansworth
15/07/2022120TQ09 - Watford / Rickmansworth
Show Details | 1990 to 2023 | 2000 to 2023 | Graph Key
Express Record Caloptilia elongella
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VC20 VC21 VC21 VC20
Click Map for Details
Wingspan: 14-16mm
Flight: June and Sept - April. (overwinters)
Foodplant:   Alder
Nat Status: Common
Verification Grade:  Adult: 4  Mine: L
 Immature Adult   [Show Flight Weeks]
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