Tortricidae : Olethreutinae
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Photo © Mike Crewe,  MV trap, Sheringham

Similar Norfolk Species
Dichrorampha petiverella
Common Drill
Dichrorampha alpinana
Broad-blotch Drill
Approx Length (c. 7.5mm) Wingspan (13-15mm)
      
      
      
      
    
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Dichrorampha flavidorsana
Narrow-blotch Drill
Knaggs, 18671275 / 49.319
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. 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: National Grade 4 - If recorded away from foodplant - Grade 4

Recorded in 13 (18%) of 74 10k Squares.
First Recorded in 1994.
Last Recorded in 2021.
Additional Stats

< Dichrorampha vancouverana  |  Dichrorampha alpinana >

Determination
List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
17/07/2021127TG11 - Drayton/Swannington
04/08/2020128TL78 - Hockwold/Weeting
01/08/2020128TF62 - King's Lynn/Dersingham
28/07/2020427TG10 - Wymondham/Cringleford
28/07/2020127TG10 - Wymondham/Cringleford
 Show Details | 1990 to 2020 | 2000 to 2020 | Graph Key
Express Record Dichrorampha flavidorsana
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Copyright © Jim Wheeler 2021
   

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Wingspan: 13-15mm
Flight: June - July. (Aug)
Foodplant:   Tansy
Nat Status: Nationally Scarce B
Verification Grade:  Adult: 2  (4)
 Immature Adult
Further info: Dichrorampha flavidorsana
 
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Lepiforum.de
NBN Atlas
Historical UK Distribution (pre 2013)
Moth Dissection UK

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Underlying maps using Digital Map Data © Norfolk Online Lepidoptera Archive - NOLA™ 2021. © James Wheeler - Norfolk Moths 2007 - 2021. Data © NOLA™ 2021
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