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Dichrorampha flavidorsana
Narrow-blotch Drill Knaggs, 1867
Tortricidae: Olethreutinae
1275 / 49.319
Photo © Mike Crewe,  MV trap, Sheringham

Similar Norfolk Species
Common Drill
Dichrorampha petiverella
Broad-blotch Drill
Dichrorampha alpinana
Wingspan: 13-15mm
Season: June - July. (Aug)
Foodplant:   Tansy
Nat Status: Nationally Scarce B
Verification Grade:  Adult: 2
Norfolk Status
Local.
Waysides, gardens and waste ground where Tansy grows. During warm late afternoons/evenings in June/July the moth can often be found at rest on the foodplant.

Similar to D. alpinana. Best separated by genitalia dissection if not recorded on foodplant.

Flies occasionally in afternoon sunshine but is more active at dusk. Both flavidorsana and alpinana, are also attracted to wormwood (Artemisia absinthium) and may often be seen flying around this plant.

Verification Grade Comment: If recorded away from foodplant - Grade 4

Recorded in 9 (13%) of 69 10k Squares.
First Recorded in 1994.
Last Recorded in 2019.

Latest 5 Records
Date#VC10k Area
23/07/2019128TL79 - Methwold/Foulden
15/07/2019228TL79 - Methwold/Foulden
12/07/2018228TL79 - Methwold/Foulden
25/07/2016+28TF92 - Fakenham/Ryburgh
08/07/2016128TF63 - Snettisham/Dersingham
Further info: Dichrorampha flavidorsana
 
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