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

Similar Suffolk Species
Caloptilia elongella
Pale Red Slender
Caloptilia rufipennella
Small Red Slender
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Caloptilia betulicola
Red Birch Slender

(Hering, 1927)283 / 15.005

Morley’s Final Catalogue: Not listed.

Recent Status: Not a commonly recorded species in Suffolk but can be frequent in areas where Betula is common.

Life Style: A double brooded species that hibernates. It may be found throughout the year and comes to light.. The larvae feed on Betula leaves. They pupate beneath a membrane.

Identification: Caloptilia species stand erect on the front legs at rest. C. betulicola is a variable species. With yellow marked orange brown forewings they may be almost unicolorous, similar to C. elongella or well marked with yellow and similar to C. hemidactylella. The femur and tibia of the front pairs of legs are similar coloured to the wings so cannot be confused with C. rufipennella. Where there is uncertain identification genitalia dissection is required. More Info The larvae hatch from an ovum either side of a leaf. They feed in a short gallery to a blotch and then leave the mine to roll a birch leaf downwards from the tip.

Determination by Genitalia Examination (gen. det.) Required

Mine: Either the leaf or a good photograph required

Recorded in 16 (28%) of 58 10k Squares.
First Recorded in 1981.
Last Recorded in 2016.
Additional Stats

Caloptilia elongella  |  Caloptilia rufipennella >

Determination
List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
06/07/2016+25TM45 - Aldeburgh/Orford
05/04/2016+25TM34 - Hollesley/Rendlesham Forest
03/04/2016+25TM35 - Snape/Tunstall
15/04/2015125TM49 - Somerleyton/Beccles
03/07/2014+25TM35 - Snape/Tunstall
Show Details | 1990 to 2018 | 2000 to 2018 |
Express Record Caloptilia betulicola
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Copyright © Jim Wheeler 2019
   

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Wingspan: 14-16mm
Flight: Two Generations. June-July. Sep. Overwintering to reappear in spring.
Foodplant:   Birch.
Nat Status: Common
Verification Grade:  Adult: 4  Mine: L
 Immature Adult
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Underlying maps using Digital Map Data © Norfolk Online Lepidoptera Archive - NOLA™ - Suffolk 2019. © James Wheeler - Norfolk Moths 2007 - 2019. Data © NOLA™ - Suffolk 2019
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