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Orange Underwing
Archiearis parthenias (Linnaeus, 1761)
Geometridae: Archiearinae
1661 / 70.203
Photo © Andy Musgrove

Similar Norfolk Species: None
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 34 (49%) of 69 10k Squares.
First Recorded in 1873.
Last Recorded in 2019.

Latest 5 Records
Date#VC10k Area
16/04/2019127TG14 - Sheringham
01/04/2019127TG21 - N.Norwich/Spixworth
01/04/2019127TG21 - N.Norwich/Spixworth
30/03/2019227TG12 - Aylsham
30/03/2019127TG42 - Hickling/Horsey
Further info: Archiearis parthenias
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