Tortricidae : Olethreutinae
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Photo © Ben Sale,  Scales Park, Hertfordshire (08/07/17) - Genitalia Dissected

Similar Herts & Middlesex Species
Dichrorampha petiverella
Approx Length (c. 7.5mm) Wingspan (13-15mm)
      
      
      
      
    
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Dichrorampha flavidorsana

Knaggs, 18671275 / 49.319

General comments:
Widespread and common

Adults should be targeted in daytime as they fly about the foodplant. Probably widespread and, numerically, more abundant than most of its congeners.

The members of the genus Dichrorampha present a challenge - both in finding examples and in correctly naming them. In recent years the introduction of various artificial pheromone lures has boosted recording - particularly since it seems that many lures are not entirely target-specific and may attract the "wrong" species. In terms of identification, examination of the genitalia is almost always the preferred method. Separation from D. alpinana always requires this.

Determination by Genitalia Examination Required

Recorded in 8 (20%) of 41 10k Squares.
First Recorded in 1959.
Last Recorded in 2022.
Additional Stats

Dichrorampha vancouverana  |  Dichrorampha alpinana >

List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
20/07/2022120TL31 - Hertford
18/07/2021121TQ16 - Sunbury / Hampton Court
24/07/2020121TQ29 - Barnet / Finchley
22/07/2020121TQ29 - Barnet / Finchley
15/07/2020120TL21 - Welwyn Garden City
Show Details | 1990 to 2023 | 2000 to 2023 | Graph Key
Express Record Dichrorampha flavidorsana
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VC20 VC21 VC21 VC20
Click Map for Details
Wingspan: 13-15mm
Flight: June - July. (Aug)
Foodplant:   Tansy
Nat Status: Nationally Scarce B
Verification Grade:  Adult: 4
 Immature Adult   [Show Flight Weeks]
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