Notodontidae : Notodontinae
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Lesser Swallow Prominent
Pheosia gnoma

(Fabricius, 1777) 2006 / 71.018
Photo © Colin Duke 2018,  Cromwell Bottom LNR, VC63

Immature stages

Similar Yorkshire Species
Swallow Prominent
Pheosia tremula
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Yorkshire Status: Common and widespread resident.

Sutton & Beaumont, 1989: Recorded fairly commonly in all five vice-counties in areas where birch is well established such as heathlands in the Vale of York. It is also the most frequent Prominent in Wharfedale (WNS).

2012 (CHF): Common and widespread with two overlapping broods. No recent changes in numbers or distribution. There can be impressive numbers in birch woodland, eg 77 at North Cliffe Wood on 6.8.2010.

Recorded in 162 (81%) of 200 10k Squares.
First Recorded in 1883.
Last Recorded in 2022.
Additional Stats

< Swallow Prominent  |  Pale Prominent >
Forewing: 20-26mm
Flight: April - June and July - August
Foodplant:   Birch
Red List Status: Least Concern (LC)
GB Status: Common
Verification Grade:  Adult: 2
List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
04/10/2022163SK69 - New Rossington / Austerfield
03/10/2022163SK69 - New Rossington / Austerfield
04/09/2022262SE98 - Wykeham
03/09/2022162SE65 - York (E)
03/09/2022163SE01 - Marsden
  Immature   Adult
Show Details | 1990 to 2022 | 2000 to 2022 | Graph Key
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