Tuesday 21 May
White-line snout moth (Schrankia taenialis)
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White-line snout moth fact file
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White-line snout moth description
- Wingspan: 1.8- 2.4 cm (1)
White-line snout moth biology
A single-brooded moth, the adults are on the wing in July and early August. The caterpillars have not been observed in the wild in the UK, therefore little is known of their biology, however it seems very likely that the species spends the winter as a caterpillar (1). Thyme, cow parsley, hogweed and the flowers of heather have been suggested as the larval foodplant (2).Top
White-line snout moth range
Before 1980, this moth was recorded in areas of England to the south of the Wash and south Wales. Since 1980 it has been found in just 30 of the former areas, but new sites have been discovered in Wales. This may be due to a decline in the species, or an artefact resulting from a lack of recording. Elsewhere the species is found in Israel, Korea, and central and western areas of Europe (2).Top
White-line snout moth habitatTop
White-line snout moth status
Classified as Nationally Scarce (2).Top
White-line snout moth threats
The causes of the poor status of the White-line Snout are not known (2).Top
White-line snout moth conservation
This moth is a priority species under the UK Biodiversity Action Plan (UK BAP). The Species Action Plan aims to maintain the present range of the species and establish a monitoring programme (2).Top
Information authenticated by Adrian Spalding.Top
- Of a plant that sheds its leaves at the end of the growing season.
- Of the stage in an animal's lifecycle after it hatches from the egg. Larvae are typically very different in appearance to adults; they are able to feed and move around but usually are unable to reproduce.
- (Also known as 'univoltine'). Insect life cycle that takes 12 months to be complete, and involves a single generation. The egg, larva, pupa or adult over winters as a dormant stage.
- Skinner, B. (1984) Colour Identification Guide to Moths of the British Isles. Viking Press, London.
- UK BAP. Species Action Plan (December 2001): http://www.ukbap.org.uk
- South, R. (1961) The moths of the British Isles. Frederick Warne & Co. Ltd., London.
- Spalding, A. (2003) Pers. comm.
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