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Bactra robustana
Saltern Marble (Christoph, 1872)
Tortricidae: Olethreutinae
1112 / 49.197
Photo © Jim Swalwell,  Holme NWT, 21/6/14

Similar Norfolk Species
Mottled Marble
Bactra furfurana
Rush Marble
Bactra lancealana
Wingspan: 16-22mm
Flight: June to July
Foodplant:   Sea Club-rush
Nat Status: Nationally Scarce B
Verification Grade:  Adult: 2
Norfolk Status
Usually found in saltmarshes around the coasts of southern and western England. Records also from Suffolk.

Similar to other Bactra, genitalia dissection may be required.

First confirmed Norfolk record at Sculthorpe Moor 11/07/09. (gen. det. male - J Clifton) Other confirmed records from Cley and Hindolveston.

Old Unconfirmed VC28 record. [JRL]

Weakly marked and unicolorous specimens can only be separated by examination of the genitalia.

Verification Grade Comment: Obscurely marked = Grade 4

Recorded in 10 (14%) of 69 10k Squares.
First Recorded in 2009.
Last Recorded in 2020.

Latest 5 Records
Date#VC10k Area
19/08/2020127TG31 - Horning/Hoveton
11/08/2020328TF74 - Holme/Titchwell
06/08/2020128TF74 - Holme/Titchwell
01/07/2020128TF74 - Holme/Titchwell
21/08/2019127TG04 - Blakeney/Cley
Further info: Bactra robustana
 
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