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Coleophora argentula
Yarrow Case-bearer (Stephens, 1834)
Coleophoridae
563 / 37.102
Photo © Brian Jones,  05/07/2022 - Western Belt, Somerleyton Estate

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Similar Species: None
Wingspan: 9.5-13 mm
Flight: July and August
Foodplant:   Yarrow or Sneezewort
Nat Status: Common
Verification Grade:  Adult: 4  Case: C1
Status
Morley’s Final Catalogue: Not uncommon among yarrow. Ipswich, Bealings, Boyton, bred in 1932-5 (Whit.); Swefling (Bloomf.); Leiston (Grey).

Recent Status: This is a common species with records in Suffolk.

Life Style: A single brooded species that comes to light. They fly in July and August. The larvae feed on the seeds of Achillea millefolium and A. ptarmica. They hibernate before pupation the following year.

Identification: The moth is a greyish ochre with white stripes and scattered dark scales. They can be identified by genitalia dissection.
The case is a silken rough surfaced case. http://www.lepiforum.de/lepiwiki.pl?Coleophora_Argentula

Determination by Genitalia Examination Required

Recorded in 36 (62%) of 58 10k Squares.
First Recorded in 1932.
Last Recorded in 2025.
Additional Stats

Latest 10 Records
Date#VC10kArea
23/03/2025125TM35Snape/Tunstall
06/03/2025425TM06Bacton/Stowupland
27/10/2024+26TL87Barnham/West Stow
27/10/2024+26TL87Barnham/West Stow
27/10/2024+26TL87Barnham/West Stow
30/09/20242526TL84Sudbury/Glemsford
28/09/2024+26TL84Sudbury/Glemsford
21/09/2024125TG40Belton/Burgh Castle
15/09/20241025TM34Hollesley/Rendlesham Forest
07/09/2024+25TM59Lowestoft
Further info: Coleophora argentula
 
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