Tortricidae : Tortricinae
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Photo © Mick ACourt,  Sutton Fen 21/06/13

Similar Norfolk Species
Cochylis pallidana
Sheep's-bit Conch
Approx Length (c. 6mm) Wingspan (9-12mm)
      
      
      
      
    
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Cochylis nana
Birch Conch

(Haworth, 1811)968 / 49.133
Norfolk status
Scarce.
Distinctive species, diagnostic small size and grey/ochreous gound colour.

A fairly common and widely distributed species in England, Wales and Scotland.
Rather scarce in Norfolk with very few recent records.
A scattering of old records include six Victorian references from across Norfolk, and 1980's and 90's records from Hickling, Ringland, Aldeford, Bawdeswell, East Wretham, Bodney, Breckles heath and Kelling Heath.

Recent records at Foulden Common (J.Wheeler, 2011) and Sheringham (F.Farrow, 2011)

Recorded in 27 (39%) of 69 10k Squares.
First Recorded in 1874.
Last Recorded in 2020.
Additional Stats

Cochylidia implicitana  |  Cochylis roseana >

Determination
List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
31/05/2020128TF83 - N.Creake/Syderstone
30/05/2020328TL99 - Thompson/Gt.Hocking
21/05/2020128TF63 - Snettisham/Dersingham
17/05/2020127TG20 - Norwich
23/06/2019228TF92 - Fakenham/Ryburgh
Show Details | 1990 to 2019 | 2000 to 2019 |
Express Record Cochylis nana
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Copyright © Jim Wheeler 2020
   

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Wingspan: 9-12mm
Flight: May-June
Foodplant:   Downy Birch, Silver Birch
Nat Status: Common
Verification Grade:  Adult: 2
 Immature Adult
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Underlying maps using Digital Map Data © Norfolk Online Lepidoptera Archive - NOLA™ 2020. © James Wheeler - Norfolk Moths 2007 - 2020. Data © NOLA™ 2020
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