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Eucosma fulvana
Tawny Knapweed Tortrix (Stephens, 1834)
Tortricidae: Olethreutinae
1200b / 49.267
Photo © Marcus Nash,  Cranwich Camp 13/07/2020

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Similar Species
Common Knapweed Tortrix
Eucosma hohenwartiana
Hoary Tortrix
Eucosma cana
Wingspan: 19-25mm
Flight: June - August
Foodplant:   Greater Knapweed
Nat Status: Local (Uncertain)
Verification Grade:  Adult: 4
Status
Unknown.
A recently split species whose distribution requires clarification.

Very similar to Eucosma hohenwartiana and E.parvulana.
Distinguished by its large size and paler colour, found in areas where Greater Knapweed is known to occur.

Formerly regarded as a large, fulvous (dull brown) form of Eucosma hohenwartiana.

Confirmed record at Cranwich Camp in June 2017 (Chris Lewis, 29/06/2017) - First for Norfolk?

Can be determined by examination of the female genitalia. There are no consistent differences between species in the male genitalia.

For more info please visit here: British Lepidoptera

Determination by Genitalia Examination Required

Recorded in 1 (1%) of 74 10k Squares.
First Recorded in 2017.
Last Recorded in 2023.

Latest 10 Records
Date#VC10kArea
01/07/2023228TL79Cranwich
24/06/2022128TL79Cranwich
17/07/2021128TL79Cranwich
13/07/2020128TL79Cranwich
05/07/2018128TL79Cranwich Heath
29/06/2017128TL79Cranwich
Further info: Eucosma fulvana
 
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