Tortricidae : Olethreutinae
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Photo © Paul Kitchener,  Eye, 7 July 2010

Similar Suffolk Species
Zeiraphera griseana
Larch Tortrix
Approx Length (c. 9.5mm) Wingspan (14-19mm)
      
      
      
      
    
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Zeiraphera isertana
Cock's-head Bell

(Fabricius, 1794)1165 / 49.260

Morley’s Final Catalogue: In profusion on oak-trunks and palings everywhere about woods; unnoted in the west. Bentley in abundance, Parham, Letheringham, Glemham Magna, Aldeburgh, Leiston, Flixton, Fritton, Gorleston.

Recent Status: A common species in Suffolk.

Life Style: A single brooded species that can be found from April to August. The larvae feed from spun or folded leaves of deciduous Quercus. They pupate in a cocoon in the larval habitation or on the foodplant.

Identification: The species has a narrower dorsal patch than Z. griseana and a broadly arched costa. The colour is more even than the smaller Z. ratzeburgiana. Male Zeiraphera have no costal fold. Z. isertana is more commonly black marked but can be brown and the intensity of the markings can vary making some specimens largely black or alternately an overall grey or brown colour.

Recorded in 38 (66%) of 58 10k Squares.
First Recorded in 1977.
Last Recorded in 2019.
Additional Stats

Zeiraphera ratzeburgiana  |  Crocidosema plebejana >

Determination
List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
02/09/2019125TM13 - Brantham/Holbrook
17/08/2019125TG50 - Gorleston
29/07/2019225TM24 - Woodbridge/Martlesham
28/07/2019125TM47 - Blythburgh/Dunwich
25/07/2019+25TM35 - Snape/Tunstall
Show Details | 1990 to 2019 | 2000 to 2019 |
Express Record Zeiraphera isertana
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Copyright © Jim Wheeler 2020
   

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Wingspan: 14-19mm
Flight: July - August
Foodplant:   Oak
Nat Status: Common
Verification Grade:  Adult: 2
 Immature Adult
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Underlying maps using Digital Map Data © Norfolk Online Lepidoptera Archive - NOLA™ - Suffolk 2020. © James Wheeler - Norfolk Moths 2007 - 2020. Data © NOLA™ - Suffolk 2020
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