Biology
provided by Arkive
This moth is single-brooded, the adults fly in June and July and the caterpillars are present in July and August. The overwintering stage is the pupa (2).
Conservation
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The Waved Carpet is a priority species under the UK Biodiversity Action Plan (UK BAP). The plan aims to enhance the size of all known populations by the year 2010. Coppice for Butterflies, an initiative of the Forestry Commission has focused on five areas where the Waved Carpet occurs. A number of the current populations occur within nature reserves and Sites of Special Scientific Interest (SSSIs) (1).
Description
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Adult Waved Carpet moths have pale whitish-grey coloured wings with wavy brown patterning (5). A darker dusky-brown form also occurs in Kent and Sussex (2). The caterpillar is purplish-brown in colour becoming greenish towards the sides (4).
Habitat
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The main habitats for this species are alder woodland and chestnut coppice. The caterpillars also feed on birch and sallow trees (6).
Range
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A very local species in the UK, the Waved Carpet is found in five main locations: Devon, Cornwall and Dorset, the borders of Hampshire Sussex and Surrey, Kent and East Sussex, and Monmouthshire and Gloucestershire. It is also occasionally reported from Wales and Cumbria. It is believed to be in decline in many parts of its European range (1).
Status
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Classified as Nationally Scarce in Great Britain (1).
Threats
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This species may have suffered because the decline in traditional coppice management has resulted in a loss of young regrowth. However, populations appear to be stable in western Britain (6).
Hydrelia sylvata
provided by wikipedia EN
Hydrelia sylvata, the waved carpet, is a moth of the family Geometridae. It is found throughout the temperate parts of the Palearctic realm.
Distribution
Their range extends from Iberia and the British Isles in the West, across Central and Eastern Europe, to Siberia and the Russian Far East and Japan. The northern border in Europe is central Fennoscandia, while the southern boundary is on the southern edge of the Alps.
Fig 4,4a Larva after final moult
Description
The wingspan is 27–30 mm. The ground colour of the forewings is whitish, grey whitish to light beige. The crosslines are light brown or dark brown, wavy. The midfield crossline is clearly delimited. A discal stain can be present in some specimens, but may be small and indistinct limited or absent. The hindwings have same pattern as the front wings. The marginal lines of the fore and hindwings are interrupted by the veins as a series of dashes. The patterns vary in intensity and arrangement.The relatively short and stubby caterpillar tapers at both the front and the rear end. It is purple-red to purple-brown, greenish on the sides at the front and back and rose-red in the middle. The dorsal line and some v-shaped spots on the back are white, the side-dorsal lines are only slightly lighter than the base colour. On the side of the 5th abdominal segment sit yellow spots. The point warts are bordered black but they are white. The small head is dark green and deeply notched. The shiny blue-green to greenish brown pupa has yellow-coloured segment incisions.
Biology
The moth flies from May to July depending on the location.
The larvae mainly feed on the leaves of various trees, including ader (Alnus glutinosa), birch (Betula) and willow (Salix) species.
References
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Hydrelia sylvata: Brief Summary
provided by wikipedia EN
Hydrelia sylvata, the waved carpet, is a moth of the family Geometridae. It is found throughout the temperate parts of the Palearctic realm.
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- Wikipedia authors and editors
