Geometridae : Ennominae
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Photo © Francis Farrow,  11/06/2016 - Sheringham Common

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Immature stages

Similar Norfolk Species
Oak Beauty
Biston strataria
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Peppered Moth
Biston betularia
(Linnaeus, 1758) 1931 / 70.252
Norfolk status
Common in gardens and a wide variety of other habitats. The adults are seen from mid May to mid August, and are typically white with black 'peppered' markings.
Two darker forms are more common where the trunks of trees are blackened by pollution. This is a classic example of evolution in action and has been much studied.

f. carbonaria: Sooty black, frequent in industrial areas correlating with levels of industrial pollution.

f. insularia: Genetic intermediate form, not a result of mixed mating, again more frequent in polluted areas.

Recorded in 67 (97%) of 69 10k Squares.
First Recorded in 1834.
Last Recorded in 2021.
Additional Stats

< Oak Beauty  |  Spring Usher >

Determination
List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
31/07/2021227TG11 - Drayton/Swannington
31/07/2021127TG20 - Norwich
30/07/2021128TF82 - Sculthorpe/Raynham
29/07/2021227TG11 - Drayton/Swannington
29/07/2021227TG31 - Horning/Hoveton
 Show Details | 1990 to 2020 | 2000 to 2020 | Graph Key
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Copyright © Jim Wheeler 2021
   

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Forewing: 22-28mm.
Flight: One generation May-Aug.
Foodplant:   many small plants, trees and shrubs
Nat Status: Common
Verification Grade:  Adult: 1
 Immature Adult
Further info: Biston betularia
 
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Underlying maps using Digital Map Data © Norfolk Online Lepidoptera Archive - NOLA™ 2021. © James Wheeler - Norfolk Moths 2007 - 2021. Data © NOLA™ 2021
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