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Orange Underwing
Archiearis parthenias (Linnaeus, 1761)
Geometridae: Archiearinae
1661 / 70.203
Photo © Dick Jones,  Dersingham 16/03/10

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Similar Norfolk Species
Light Orange Underwing
Archiearis notha
Forewing: 16-19mm.
Flight: One generation. Mar-April.
Foodplant:   Downy Birch, Silver Birch.
Nat Status: Local
Verification Grade:  Adult: 1
Norfolk Status
Day-flying species best seen on warm, sunny spring days, usually seen flying high around the tops of birch trees before they come into leaf.
Birch heathland and woodland.

Recorded in 36 (52%) of 69 10k Squares.
First Recorded in 1873.
Last Recorded in 2021.

Latest 5 Records
Date#VC10k Area
26/04/2021127TG21 - N.Norwich/Spixworth
19/04/2021127TG11 - Drayton/Swannington
19/04/2021128TL79 - Methwold/Foulden
17/04/2021128TF61 - S.Lynn/Tottenhill
05/04/2021328TL98 - Brettenham/Harling
Further info: Archiearis parthenias
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