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Bactra lacteana
Scarce Sedge Marble Caradja, 1916
Tortricidae: Olethreutinae
1111a / 49.196
Photo © Jim Swalwell,  25/08/2019 - Titchwell RSPB

Similar Norfolk Species
Rush Marble
Bactra lancealana
Wingspan: 10-17mm
Flight: June-August
Foodplant:   Sedge
Nat Status: Nationally Scarce B
Verification Grade:  Adult: 4
Norfolk Status
Discovered in Britain in 1996, easily confused with other Bactra species.

Specimens of Bactra lancealana showing two short blackish sub-apical streaks are potentially this species and should be checked by reference to the genitalic structure.

New for Norfolk in 2019, when a male was trapped near Burnham Market on 23/08/19 (K. Kerr) A female was also trapped at Titchwell RSPB (J. Swalwell, 25/08/19, Gen. Det. K. Kerr, Confirmed J. Clifton)

Recorded at Buxton Heath in 2021 - New for VC27 (R. Bashford - Gen. Det. A. Banthorpe 01/06/2021)

Determination by Genitalia Examination (gen. det.) Required

Recorded in 4 (5%) of 74 10k Squares.
First Recorded in 2019.
Last Recorded in 2021.

Latest 5 Records
Date#VC10k Area
01/06/2021127TG12 - Aylsham
30/05/2020128TF81 - Castle Acre/Litcham
25/08/2019128TF74 - Holme/Titchwell
23/08/2019128TF84 - Burnham/Holkham
Further info: Bactra lacteana
 
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