Tortricidae : Olethreutinae
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Photo © Mick Wight,  Ipswich 4 August 2019

Similar Suffolk Species
Dichrorampha acuminatana
Sharp-winged Drill
Approx Length (c. 6mm) Wingspan (9-12 mm.)
      
      
      
      
    
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Dichrorampha consortana
Downland Drill

Stephens, 18521280 / 49.312

Morley’s Final Catalogue: Noticed only at Southwold in 1888 (Ctw), though doubtless not rare among oxeye-daisies.

Recent Status: A rare species in Suffolk.

Life Style: A single brooded species flying in July and August and coming to light. The larvae feed in stems of Leucanthemum species. It is not clear which stage passes the winter. They pupate in a cocoon either in the larval habitation or in the ground.

Identification: The easiest of Dichrorampha species for identification. The forewings are very dark brown or black and marked with white. There are prominent plumbeous striae from the costal strigulae and black spots on the termen. The cilia show a white band. The males have a costal fold to one third.
The larvae cause a slight swelling in the stem of Leucanthemum resulting in a cessation of the growth of the plant. The larvae then feed upwards into the flower. Abnormally spindly side shoots of the plant may occur.

Determination by Genitalia Examination (gen. det.) Required

Recorded in 1 (2%) of 58 10k Squares.
First Recorded in 1888.
Last Recorded in 1888.
Additional Stats

Dichrorampha aeratana  |  Dichrorampha acuminatana >

Determination
List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
1888+25TM57 - Southwold
Show Details | 1990 to 2019 | 2000 to 2019 |
Express Record Dichrorampha consortana
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Copyright © Jim Wheeler 2020
   

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Wingspan: 9-12 mm.
Flight: July to August
Foodplant:   oxeye daisy
Nat Status: Nationally Scarce A
Verification Grade:  Adult: 4
 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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