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Burnished Brass
Diachrysia chrysitis (Linnaeus, 1758)
Noctuidae: Plusiinae
2434 / 73.012
Photo © Rob Lee,  Roughton 24/08/2020

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Similar Norfolk Species
Slender Burnished Brass
Thysanoplusia orichalcea
Forewing: 16-19mm.
Flight: One generation June-July. (partial Aug-Oct)
Foodplant:   Common Nettle other plants.
Nat Status: Common
Verification Grade:  Adult: 1
Norfolk Status
Two striking brassy metallic bands on forewing. Typically these two bands are separated, however the form tutti has the two vertical brassy bands on the forewing joined forming an H-shape.

The separate banded and H-shape banded forms are both the same species.

Diachrysia stenochrysis
A controversial species named Diachrysia stenochrysis also has the two vertical brassy bands on the forewing joined forming a “H-shape”. It is suggested that the join needs to be at least 3 millimetres wide for it to be considered D stenochrysis. The species has not been clearly distinguished externally and genitally from D chrysitis.

Please note: Diachrysia stenochrysis has not been proven to occur in the UK.

Recorded in 67 (91%) of 74 10k Squares.
First Recorded in 1834.
Last Recorded in 2021.

Latest 5 Records
Date#VC10k Area
18/10/2021127TG13 - Baconsthorpe
13/10/2021127TG31 - Horning/Hoveton
09/10/2021128TF93 - Fakenham/Walsingham
08/10/2021128TF70 - Beachamwell/Oxborough
07/10/2021127TG13 - Baconsthorpe
Further info: Diachrysia chrysitis
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