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Acleris notana
Tawny Birch Tortrix (Donovan, 1806)
Tortricidae: Tortricinae
1045 / 49.084
Photo © Neil Sherman,  Confirmed by gen.det. Purdis Farm, Ipswich. June 2011

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Similar Species
Tawny Oak Tortrix
Acleris ferrugana
Wingspan: 14-18mm.
Flight: Two Gens. June-July. Sept-May Overwintering.
Foodplant:   Birch. Alder, Bog-myrtle
Nat Status: Common
Verification Grade:  Adult: 4
Status
Morley’s Final Catalogue: Not listed.

Recent Status: A common species in Suffolk. The comments by Morley for A. ferrugana cover both species.

Life Style: Double brooded the autumn brood hibernating. Flies at night and comes to light. The larvae feed from spun leaves on Betula and Alnus.

Identification: The species is very variable in colour and markings and a little more so than the similar A. ferrugana from which it is only reliably separated by genitalia dissection.
https://mothdissection.co.uk/species.php?ABH=49.0840
It should be noted that the images in Moths and Butterflies of Great Britain and Ireland are wrongly labelled in reverse for A. ferrugana and A. notana.

Determination by Genitalia Examination Required

Recorded in 24 (41%) of 58 10k Squares.
First Recorded in 1987.
Last Recorded in 2024.
Additional Stats

Latest 10 Records
Date#VC10kArea
29/05/2024126TL78Brandon/Lakenheath
13/07/2023126TL78Brandon/Lakenheath
08/07/2023126TL78Brandon/Lakenheath
28/06/2023126TL78Brandon/Lakenheath
17/07/2022126TL78Brandon/Lakenheath
11/07/2022126TL78Brandon/Lakenheath
10/07/2022126TL78Brandon/Lakenheath
08/07/2022125TG40Belton/Burgh Castle
18/03/2022126TL78Brandon/Lakenheath
01/01/2022126TL78Brandon/Lakenheath
Further info: Acleris notana
 
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