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Eucosma hohenwartiana
Common Knapweed Tortrix ([Denis & Schifferm?ller], 1775)
Tortricidae: Olethreutinae
1200 / 49.266
Photo © Dave Wilton,  Bernwood Forest, Bucks 2010 (gen det female)

Similar Upper Thames Species
Saltern Tortrix
Eucosma tripoliana
Tawny Knapweed Tortrix
Eucosma fulvana
Foodplant:   Common Knapweed
Nat Status: Common
Verification Grade:  Adult: 4

Widespread and fairly common across most of our region. Requires dissection to separate from Eucosma fulvana and Eucosma parvulana, both of which are found in our area (only females can be determined to species this way). Should otherwise be recorded as Eucosma hohenwartiana agg.

Determination by Genitalia Examination (gen. det.) Required

Recorded in 41 (53%) of 78 10k Squares.
First Recorded in 1982.
Last Recorded in 2022.
(Data up to end 2022)

Latest 5 Records (Data up to end 2022)
Date#VC10k Area
21/07/2022124SP71 - Westcott, Waddesdon
19/07/2022123SP40 - Wolvercote, Wytham, Wootton
19/07/2022124SP71 - Westcott, Waddesdon
18/07/2022123SP40 - Wolvercote, Wytham, Wootton
18/07/2022124SP80 - Wendover, Princes Risborough
Further info: Eucosma hohenwartiana
 
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