Notodontidae : Thaumetopoeinae
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Oak Processionary
Thaumetopoea processionea

(Linnaeus, 1758) 2022 / 71.001
Photo © Dave Shenton

Pale Eggar
Trichiura crataegi
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Express Record Oak Processionary

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Yorkshire Status: Very rare and very local vagrant.

Current status (CHF, 2011): NEW COUNTY RECORD - Leeds 2009. The communal larvae of this moth have been reported from various sites in the London area since 2006, mostly on imported oaks. In 2009, a larval nest was found on an imported oak in Leeds. Searches in 2010 failed to find any more at this site however another larval web was found at a site in Sheffield, again on an imported oak. This species is a quarantine pest and any suspected occurrence should be reported to the Forestry Commission, however it may already be well established in the south east so it is likely that we may hear more about it in years to come.

Argus 87, 2019: This is the third record for the county. A larval web was found on a recently planted oak. It was reported to the Forestry Commission and the tree was destroyed. It is likely that despite control measures, we are fighting a losing battle against this species.

VC61. University of Hull, 16.7.2019 (FC). NEW VICE-COUNTY RECORD.

Retained Specimen / Photograph will be Required.

Recorded in 4 (2%) of 200 10k Squares.
First Recorded in 2009.
Last Recorded in 2023.
Additional Stats

< Common Emerald  |  Puss Moth >
Forewing: 16-17mm (f), 14-16mm (m)
Flight: July - September
Foodplant:   Oaks
GB Status: Naturalised / Immigrant
Verification Grade:  Adult: 3
List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
19/08/2023162TA08 - Scarborough
16/07/2019161TA03 - Beverley (S) / Cottingham
04/08/2010+63SK38 - Sheffield
June 2009+64SE33 - Leeds
  Immature   Adult   [Show Flight Weeks]
Show Details | 1990 to 2023 | 2000 to 2023 | Graph Key
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