Geometridae : Larentiinae
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Photo © John Edmund Chainey,  Nuthampstead, Hertfordshire (25/07/18)

Similar Herts & Middlesex Species
Common Marbled Carpet
Dysstroma truncata
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Dark Marbled Carpet
Dysstroma citrata

(Linnaeus, 1761) 1762 / 70.098
=Chloroclysta citrata

General comments:
Widespread but extremely local resident. Declining. Species of Conservation Concern.

This moth flies primarily in July and August in our area. Records from May and October have all, on checking carefully, been found to include misidentified Common Marbled Carpet. Although the two can usually be separated fairly easily, both are very variable species and so the extra information that outside the July/August window they are more likely to be Common Marbled Carpet may help some people. Foster (1937) reported that it was 'Common everywhere', but that may have been an oversimplification of a distribution not too different from that which we see today. This species seems to be in decline.

Recorded in 28 (68%) of 41 10k Squares.
First Recorded in 1900.
Last Recorded in 2021.
Additional Stats

< Common Marbled Carpet  |  Beech-green Carpet >

List Species Records   [Show All Latest]
Latest 5 Records
Date#VC10k Area
16/09/2021120SP91 - Tring
27/06/2021120TL42 - Bishop's Stortford (N)
28/09/2020120TL11 - Harpenden / Wheathampstead
05/08/2020120TL43 - Meesden / Barley
13/06/2020120TL21 - Welwyn Garden City
Show Details | 1990 to 2023 | 2000 to 2023 | Graph Key
Express Record Dark Marbled Carpet
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VC20 VC21 VC21 VC20
Click Map for Details
Forewing: 14-19mm.
Flight: One generation July-Aug.
Foodplant:   Many woody plants
Red List: Least Concern (LC)
GB Status: Common
Verification Grade:  Adult: 2
 Immature Adult   [Show Flight Weeks]
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