Tortricidae : Olethreutinae
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Photo © Tony Fox,  29/05/2020 - Alton Water

Approx Length (c. 5.5mm) Wingspan (9-11mm.)
      
      
      
      
    
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Dichrorampha sequana
Square-spot Drill

Hübner, 17991278 / 49.316

Morley’s Final Catalogue: Bred at E. Bergholt from tansy in 1931-4 (Whit) and Waldringfield in 1933 (Trans, ii, 185); Copdock (Hkg); common among coltsfoot in Somerleyton brickfields (Mly).

Recent Status: Less common than in Morley’s time.

Life Style: A single brooded species that comes to light and flies during May and June. The larvae feed on the rootstock of Achillea and Tanecetum. They pupate in the ground.

Identification: An easily identified species of Dichrorampha from the white or pale cream sub-quadrate dorsal blotch and white basal striae. It also has prominent white costal strigulae. The male has a costal fold to one half. More Info

Recorded in 10 (17%) of 58 10k Squares.
First Recorded in 1931.
Last Recorded in 2020.
Additional Stats

Dichrorampha simpliciana  |  Dichrorampha vancouverana >

Determination
List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
29/05/2020325TM13 - Brantham/Holbrook
24/05/2020+26TL96 - Thurston/Elmswell
20/06/2019125TM24 - Woodbridge/Martlesham
09/06/2019+26TL77 - Mildenhall
30/05/2015326TL87 - Barnham/West Stow
Show Details | 1990 to 2019 | 2000 to 2019 |
Express Record Dichrorampha sequana
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Copyright © Jim Wheeler 2020
   

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Wingspan: 9-11mm.
Flight: June
Foodplant:   Yarrow.
Nat Status: Local
Verification Grade:  Adult: 1
 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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