Geometridae : Ennominae
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Brown Silver-line
Petrophora chlorosata

(Scopoli, 1763) 1902 / 70.222
Photo © Ian Andrews,  SE760480Allerthorpe Common

Similar Yorkshire Species
July Belle
Scotopteryx luridata
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Express Record Brown Silver-line

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Yorkshire Status: Common and widespread resident.

"Among bracken in woods, often in abundance, throughout the county" said Porritt in 1907. We could not argue with this assessment nowadays, though it occurs wherever there is bracken. The biggest numbers are often in heathy areas eg 200 to light on Thorne Moor on 18/6/2013. It is often disturbed in the daytime. Smaller numbers sometimes turn up in areas away from bracken such as gardens. It should be easily identifiable, but we have seen over-enthusiastic new moth trappers label it "July Belle" or some other rarity.

Sutton & Beaumont, 1989: Often abundant among bracken but may stray far from its food plant. Recorded from all five vice-counties.

Recorded in 168 (84%) of 200 10k Squares.
First Recorded in 1883.
Last Recorded in 2023.
Additional Stats

< Little Thorn  |  Barred Umber >
Forewing: 15-18mm
Flight: May - June
Foodplant:   Bracken
Red List Status: Least Concern (LC)
GB Status: Common
Verification Grade:  Adult: 1
List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
31/07/2023161SE63 - Selby
27/07/2023162SE67 - Hovingham
13/07/2023165NY92 - Middleton-In-Teesedale
07/07/2023161TA17 - Bempton
06/07/2023163SE03 - Haworth
  Immature   Adult   [Show Flight Weeks]
Show Details | 1990 to 2023 | 2000 to 2023 | Graph Key
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