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White-spotted Pinion
Cosmia diffinis (Linnaeus, 1767)
Noctuidae: Xyleninae
2317 / 73.214
Photo © Dave Norgate,  26/07/2017 - Brecks

Similar Norfolk Species
Lesser-spotted Pinion
Cosmia affinis
Lunar-spotted Pinion
Cosmia pyralina
Forewing: 14-16mm.
Flight: One gen. late July- late Aug.
Foodplant:   English Elm, Wych Elm, Small-leaved Elm.
Nat Status: Red Data Book (proposed)
Verification Grade:  Adult: 3
Norfolk Status
Scarce.
One of three rather similar British species.
Much larger pure-white markings on leading edge of forewing than other two similar 'pinions'.
Elm feeder, suffered greatly by outbreaks of Dutch Elm Disease in the 1970s onwards.

Look for larvae in epicormic growth (shoots growing directly from trunk)

Very few recent records.

Record confirmation required.

BAP Priority Species

Verification Grade Comment: Very rare.

Retained Specimen / Photograph will be Required.

Recorded in 16 (22%) of 74 10k Squares.
First Recorded in 1800.
Last Recorded in 2021.

Latest 5 Records
Date#VC10k Area
21/08/2021127TM08 - Banham/Lopham
23/08/2019128TF84 - Burnham/Holkham
17/08/2019128TF62 - King's Lynn/Dersingham
31/07/2018128TF80 - Swaffham
26/07/2017128TL79 - Methwold/Foulden
Further info: Cosmia diffinis
 
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