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Oak Beauty
Biston strataria (Hufnagel, 1767)
Geometridae: Ennominae
1930 / 70.251
Photo © David Hunt,  Harpenden, Hertfordshire (22/03/24)

Similar Herts & Middlesex Species
Peppered Moth
Biston betularia
Spring Usher
Agriopis leucophaearia
Forewing: 17-27mm.
Flight: One generation Feb-April.
Foodplant:   Broadleaved trees.
Red List: Least Concern (LC)
GB Status: Common
Verification Grade:  Adult: 1

General comments:
Widespread resident.

Variation is minimal within this attractive species, but occasionally very dark examples turn up in light traps. Almost all examples attracted to light are males and so rearing the next generation from dark females is seldom possible. Most records are from woodlands, though garden light traps are sometimes visited.

Recorded in 35 (85%) of 41 10k Squares.
First Recorded in 1887.
Last Recorded in 2024.

Latest Records
Date#VC10k - General Area
01/04/2024120TL42 - Bishop's Stortford (N)
29/03/2024120TL23 - Letchworth / Baldock
28/03/2024+20TL31 - Hertford
27/03/2024+20TL31 - Hertford
21/03/2024220TL11 - Harpenden / Wheathampstead
21/03/2024120TL23 - Letchworth / Baldock
21/03/2024120TQ09 - Watford / Rickmansworth
20/03/2024+20TL11 - Harpenden / Wheathampstead
20/03/2024120TL42 - Bishop's Stortford (N)
19/03/2024120SP90 - Berkhamsted
Further info: Biston strataria
 
UK Moths
Mothdissection UK
Lepiforum.de Herts & Middlesex Moths (Full)
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