Noctuidae : Hadeninae
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Similar Herts & Middlesex Species: None
Silvery Arches
Polia hepatica

(Clerck, 1759) 2149 / 73.260

General comments:
Extinct resident.

This is a species of open woodland on acid soils, especially heaths, in Britain. An adult was bred from a single larva found on birch at Ashridge in May 1937 by D. Frost. A. H. Foster commented that this was the first record for Hertfordshire. Since then, one was taken at light at Berkhampstead in 1945 and then another at Totteridge on 22nd June 1970. For Middlesex, the only record is from a garden in Pinner in 1963.


Retained Specimen / Photograph will be Required.

Recorded in 4 (10%) of 41 10k Squares.
First Recorded in 1937.
Last Recorded in 1970.
Additional Stats

< Pale Shining Brown | Grey Arches >

List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
22/06/1970120TQ29 - Barnet / Finchley
1963+21TQ19 - Bushey / Borehamwood / Stanmore
1960+20TQ29 - Barnet / Finchley
1945+20SP90 - Berkhamsted
1937120SP91 - Tring
Show Details | 1990 to 2023 | 2000 to 2023 | Graph Key
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VC20 VC21 VC21 VC20
Click Map for Details
Forewing: 21-25mm
Flight: June - July
Foodplant:   Birches and sallows, Bog-myrtle
Red List: Least Concern (LC)
GB Status: Nationally Scarce
Former Status: Nationally Scarce B
Verification Grade:  Adult: 3
 Immature Adult   [Show Flight Weeks]
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