Geometridae : Archiearinae
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Photo © Neil Bowman,  Norfolk April 2021

Immature stages

Similar Norfolk Species
Orange Underwing
Archiearis parthenias
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Light Orange Underwing
Archiearis notha

(Hübner, 1803) 1662 / 70.204
=Boudinotiana notha
Norfolk status
Occurring locally in the southern half of England.

Known from one site in Norfolk (confirmed in 2021, Phil Heath) Recent investigations by Phil have uncovered previously unknown reports of regular sightings at this site, possibly since the 1960s!

Identification can be made by differences in the male antennae, which are finely serrated in Orange Underwing and slightly feathered in Light Orange Underwing.
The underside of the hindwing of Orange Underwing shows an orange band that projects centrally into a dark outer band, often reaching outer margin. Light Orange Underwing shows a dark outer band that is is unbroken, and the central projection of the orange band is absent. (MBGBI Vol 7 part 2)

Barrett [VCH 1901] Brephos notha, Hb.
" Has been taken at Horsford near Norwich"

(Note 2021 genus name change to Archiearis)

Retained Specimen / Photograph will be Required.

Recorded in 3 (4%) of 74 10k Squares.
First Recorded in 1873.
Last Recorded in 2021.
Additional Stats

< Orange Underwing  |  Magpie Moth >

List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
1914+28TF60 - Downham/Fincham
1907128TF60 - Downham/Fincham
1873 to 1913+27TG11 - Drayton/Swannington
Show Details | 1990 to 2020 | 2000 to 2020 | Graph Key
Express Record Light Orange Underwing
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Copyright © Jim Wheeler 2021

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Forewing: 15-17mm.
Flight: March - April.
Foodplant:   Aspen
Nat Status: Nationally Scarce B
Verification Grade:  Adult: 3
 Immature Adult
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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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