Nolidae : Nolinae
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Photo © Ben Sale,  Stevenage, Hertfordshire (11/04/20)

Similar Herts & Middlesex Species
Scarce Black Arches
Nola aerugula
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Least Black Arches
Nola confusalis

(Herrich-Schäffer, 1847) 2078 / 74.004

General comments:
Widespread resident.

The Least Black Arches was for a long time considered a rarity and was first recorded in our area as recently as 1934. Occasional examples were recorded over the next 50 years, but from the mid-1980s numbers increased in parallel with an apparent extension of affected area. Today it is more or less expected in most sites.

Of some interest is the grey aberration columbina Image, which was said to be confined to Epping Forest in Essex. This certainly is no longer the case and grey forms are frequently caught at sites elsewhere. Of course, prior to the 1980s, moth recording was not widely undertaken: Collectors made repeat visits to specific sites for specific targets. Perhaps columbina was only found at Epping because that is the only place where people looked for the moth? Then again,columbina itself may have increased in frequency?

Recorded in 34 (83%) of 41 10k Squares.
First Recorded in 1934.
Last Recorded in 2024.
Additional Stats

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List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
09/05/2024121TQ09 - Watford / Rickmansworth
13/04/2024221TQ09 - Watford / Rickmansworth
12/04/2024121TQ09 - Watford / Rickmansworth
12/04/2024120TL23 - Letchworth / Baldock
12/04/2024120TQ09 - Watford / Rickmansworth
Show Details | 1990 to 2023 | 2000 to 2023 | Graph Key
Express Record Least Black Arches
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VC20 VC21 VC21 VC20
Click Map for Details
Forewing: 9-11mm.
Flight: One generation May-June.
Foodplant:   Lime, Oak, Various broad-leaved trees
Red List: Least Concern (LC)
GB Status: Common
Former Status: Local
Verification Grade:  Adult: 1
 Immature Adult   [Show Flight Weeks]
© hertsmiddxmoths.uk 2024 NOLA®; Database using MapMate® Digital Maps © Bartholomew 2010. Design © Jim Wheeler 2024
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