Gracillariidae : Gracillariinae
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Photo © Tim Blackburn,  Tufnell Park, Middlesex (14/09/23)

Similar Herts & Middlesex Species
Caloptilia hemidactylella
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Caloptilia honoratella

(Rebel, 1914)291a / 15.0131

General comments:
In 2022, it was demonstrated (Entomologist's Record: 134) that there are problems separating the Acer-feeding species - rufipennella; hemidactylella, honoratella, semifascia on wing pattern alone; there is also a concern that two non-British species (juratae and fribergensis) are likely to reach Britain. Consequently, in all but the smallest number of cases, adults of all these species require genitalia examination to prove their identity.

Hertfordshire notes:
The first Hertfordshire specimen was taken at actinic light on 21st May 2020 in Stevenage. It has spread rapidly and now affects the whole county.

Middlesex Notes:
First noted at Walpole Park, 1st September 2021 and now regarded as widespread and common.

The larvae mine leaves of Field Maple Acer campestre.

Determination by Genitalia Examination Required

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

Recorded in 13 (32%) of 41 10k Squares.
First Recorded in 2020.
Last Recorded in 2023.
Additional Stats

Caloptilia hemidactylella | Gracillaria syringella >

List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
13/09/2023121TQ28 - Hendon / Hampstead / Camden
10/08/2023121TQ17 - Brentford / Hounslow / Richmond
09/07/2023120TL11 - Harpenden / Wheathampstead
30/06/2023120TQ09 - Watford / Rickmansworth
27/06/2023121TQ29 - Barnet / Finchley
Show Details | 1990 to 2023 | 2000 to 2023 | Graph Key
Express Record Caloptilia honoratella
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VC20 VC21 VC21 VC20
Click Map for Details
Wingspan: 12 mm
Flight: August to May. Hibernates.
Foodplant:   Field Maple
Nat Status: Immigrant
Verification Grade:  Adult: 4  Mine: R
 Immature Adult   [Show Flight Weeks]
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