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Agonopterix propinquella
Black-spot Flat-body (Treitschke, 1835)
Depressariidae: Depressariinae
696 / 32.016
Photo © Raymond A Watson,  Hollesley, Suffolk.

Similar Suffolk Species
Ruddy Flat-body
Agonopterix subpropinquella
Wingspan: 16-19mm
Flight: Sept - overwinter - July.
Foodplant:   creeping thistle or spear thistle
Nat Status: Local
Verification Grade:  Adult: 2

Morley’s Final Catalogue: Not very frequent, for a thistle-feeder. Rarely in Bentley Woods during March, and at Monks Soham light in Feb.—March 1921-36 (Mly); Leiston (Grey).

Recent Status: Scarce but widely distributed in Suffolk.

Life Style: The moth is single brooded and hibernates. It is night flying and comes to light. The larvae initially mine a leaf and then feed from a spinning near the mid vein of Cirsium vulgare or C. arvense. Pupates in a cocoon on the ground.

Identification: The moth is a smaller (16 to 19 mm wing span), rounded winged Agonopterix. The colour is light brownish often densely spotted, mottled and shaded darker. It has a basal dash and spotted termen. The Agonopterix twin spots may be present. The central suffuse patch can be large if present. The wing base, thorax and head may be paler.

Recorded in 17 (29%) of 58 10k Squares.
First Recorded in 1921.
Last Recorded in 2020.

Latest 5 Records
Date#VC10k Area
06/07/2020125TM13 - Brantham/Holbrook
30/03/2019125TM44 - Orford Ness
28/03/2019125TM23 - Felixstowe/Landguard Point
17/07/2018+25TM34 - Hollesley/Rendlesham Forest
14/07/2018+25TM34 - Hollesley/Rendlesham Forest
Further info: Agonopterix propinquella
 
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