Tortricidae : Tortricinae
  Prev | Next  
Photo © Paul Kitchener,  Ipswich, 24 May 2017

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

(Haworth, 1811)968 / 49.133

Morley’s Final Catalogue: Local on birch at Tuddenham and Brandon (Wrn); Mildenhall and Darsham in May 1935, and at light by Fritton Lake in May 1937 (Mly).

Recent Status: Common in the Sandlings.

Life Style: A single brooded species with a partial second brood. Flies at night and comes to light during May June and August. The larvae feed on Betula species catkins. They hibernate fully fed in a cocoon on the tree in which they pupate.

Identification: A small Cochylis species marked with grey and some light brown.. The palps and head are pale. The thorax and wing base are marked with grey. There is a grey central band, marked with black that is very wide on the dorsum and narrows somewhat towards the costa. There is a grey suffusion short of the apex. More Info

Recorded in 14 (24%) of 58 10k Squares.
First Recorded in 1935.
Last Recorded in 2019.
Additional Stats

Cochylidia implicitana  |  Cochylis roseana >

Determination
List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
23/06/2019125TM49 - Somerleyton/Beccles
09/06/2019125TM47 - Blythburgh/Dunwich
03/06/2019125TM24 - Woodbridge/Martlesham
02/06/2019125TM47 - Blythburgh/Dunwich
05/06/2018125TM24 - Woodbridge/Martlesham
Show Details | 1990 to 2019 | 2000 to 2019 |
Express Record Cochylis nana
We need your records!
Do you have records of Cochylis nana?
Put your own dot on the map!

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
Share this page

     
Underlying maps using Digital Map Data © Norfolk Online Lepidoptera Archive - NOLA™ - Suffolk 2020. © James Wheeler - Norfolk Moths 2007 - 2020. Data © NOLA™ - Suffolk 2020
We use cookies to personalise content and enhance your experience. By clicking OK or using this site, you consent to the use of cookies unless you disable them. Cookies Policy