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Beech-green Carpet
Colostygia olivata ([Denis & Schifferm?ller], 1775)
Geometridae: Larentiinae
1774 / 70.099
Photo © Jack Oughton

Similar Dorset Species
Autumn Green Carpet
Chloroclysta miata
Red-green Carpet
Chloroclysta siterata
Forewing: 13-15mm
Flight: July - August
Foodplant:   Bedstraws
Red List: Least Concern (LC)
GB Status: Common
Former Status: Local
Verification Grade:  Adult: 3

Davey, P., 2009: A moorland species in northern Britain, but restricted to chalky soil in southern Britain where it is very local, the larva feeding on lady's bedstraw (Galium verum), hedge bedstraw (Galium mollugo) and heath bedstraw (Galium saxatile). In Dorset, the moth is restricted to unimproved grassland and coastal cliff habitat on Portland. In the nineteenth century it was deemed abundant in the 1870s (Dale), and common around 1895 (Richardson). Today the species is best described as extremely local and at low density on the island, probably due to the reduction in the overall extent of unimproved grassland. Recommendations for promoting colonies of this species on Portland include: setting grazing levels on unimproved grassland to increase stocks of lady's bedstraw, and, maintaining areas of scrub and hedgerow that contain hedge bedstraw and also provide shelter for the adult moth.

Retained Specimen / Photograph will be Required.

Recorded in 4 (10%) of 40 10k Squares.
First Recorded in 1884.
Last Recorded in 2019.
(Data up to end 2019)

Latest 5 Records (Data up to end 2019)
Date#VC10k Area
24/07/2019+9SY67 - Portland / Weymouth
27/07/201619SY67 - Portland / Weymouth
08/09/201519SY39 - Lyme Regis
27/08/201529SY39 - Lyme Regis
26/08/201539SY39 - Lyme Regis
Further info: Colostygia olivata
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