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Caloptilia elongella
Pale Red Slender (Linnaeus, 1761)
Gracillariidae: Gracillariinae
282 / 15.004
Photo © Raymond A Watson,  Hollesley, Suffolk.

Similar Suffolk Species
Red Birch Slender
Caloptilia betulicola
Maple Slender
Caloptilia semifascia
Wingspan: 14-16mm
Flight: All year round.
Foodplant:   Alder
Nat Status: Common
Verification Grade:  Adult: 3  Mine: A

Morley’s Final Catalogue: Not very commonly beaten from bushes in Bentley Woods during August, November, March and April 1895-1934 (Mly); Flixton near Bungay in April 1891 (Ctw); Reydon in September 1935 (Baker); Sutton and Thetford (Whit.); Blythbro (Gd).

Recent Status: Commonly recorded in Suffolk

Life Style: A double possibly triple brooded species that hibernates. It comes to light and can be found throughout the year. The larvae feed on Alnus species. They pupate under a membrane on the underside of a leaf.

Identification: Caloptilia stand erect on their front legs at rest. This species is one of the less well marked Caloptilia species. It has a variable colour from dull brown to bright yellow ochre. It has variable darker spots and patches. It often has a paler streak centrally from the base and along the costa. There may sometimes be a pale or yellowish indistinct patch on the costa. The femur and tibia are similarly coloured to the wing. It may sometimes be similar to forms of C. betulicola. Dissection is then necessary for identification. More Info
The larvae feed from a small gallery on the upperside of a leaf where the ovum was laid. This becomes a blotch. They then leave this to roll a leaf longitudinally. A second roll is produced.

Retained Specimen / Photograph will be Required.

Recorded in 32 (55%) of 58 10k Squares.
First Recorded in 1891.
Last Recorded in 2021.

Latest 5 Records
Date#VC10k Area
17/09/2021+26TL78 - Brandon/Lakenheath
24/08/2021126TL78 - Brandon/Lakenheath
01/07/2021126TL87 - Barnham/West Stow
20/03/2021126TL78 - Brandon/Lakenheath
02/03/2021126TL78 - Brandon/Lakenheath
Further info: Caloptilia elongella
 
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