Gracillariidae : Gracillariinae
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Photo © Raymond A Watson,  Hollesley, Suffolk. 23 October 2019

Immature stages

Similar Suffolk Species
Caloptilia cuculipennella
Feathered Slender
Caloptilia populetorum
Clouded Slender
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Caloptilia falconipennella
Scarce Alder Slender

(Hübner, 1813)289 / 15.011

Morley’s Final Catalogue: Not listed.

Recent Status: Few Suffolk records but becoming commoner in the late 2010s.

Life Style: A double brooded species that hibernates. It may also arrive in Suffolk as an immigrant. It can be found throughout the year. The larvae feed on Alnus species. They pupate in the larval habitation.

Identification: Caloptilia species stand erect on their front legs at rest. C. falconipennella is seasonally dimorphic. They are a light creamy brown with darker speckling, spots and mottling. The overall colour can also be red, orange, purple or maroon brown. The summer form has a sharply defined yellow costal blotch. This is faint or absent at other times except for the oblique front edge that defines a darker basal area. The species commonly shows dark and pale spots alternately along the dorsum and sometimes the costa. The femur and tibia of the front legs are the same colour as the wings.
The larvae initially mine a blotch on the underside of a leaf where the ovum was laid before folding a leaf edge. They will move two or three times and pupate in the last larval habitation. More Info

Retained Specimen / Photograph will be Required.

Mine: Either the leaf or a good photograph required

Recorded in 21 (36%) of 58 10k Squares.
First Recorded in 2005.
Last Recorded in 2021.
Additional Stats

Caloptilia stigmatella  |  Caloptilia fidella >

List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
19/09/2021125TM25 - Wickham Market/Otley
01/04/2021125TM46 - Minsmere/Leiston
30/03/2021226TL78 - Brandon/Lakenheath
20/03/2021126TL78 - Brandon/Lakenheath
08/11/2020125TM24 - Woodbridge/Martlesham
Show Details | 1990 to 2020 | 2000 to 2020 | Graph Key
Express Record Caloptilia falconipennella
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Copyright © Jim Wheeler 2021

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Wingspan: 12-14mm
Flight: All year round.
Foodplant:   Alder
Nat Status: Nationally Scarce B
Verification Grade:  Adult: 3  Mine: L
 Immature Adult
Underlying maps using Digital Map Data © Norfolk Online Lepidoptera Archive - NOLA™ - Suffolk 2021. © James Wheeler - Norfolk Moths 2007 - 2021. Data © NOLA™ - Suffolk 2021
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