Silver-studded Blue (Plebeius argus)

Local information

The Silver-studded Blue became extinct in Cheshire during the 1920's, but has been re-introduced at one site on the Wirral in 1994.

In 2005 there were no sightings of the Silver-studded Blue despite regular surveys. The colony is now considered extinct.

When to see: June to early August

Habitat: Lowland heath

Behaviour: Patrol. Slow, fluttery flight.

Adult nectar plant: Bell Heather (Erica cinerea)

Caterpillar food plant: Mainly pioneer Heather (Calluna vulgaris) but also Cross-leaved Heath (Erica tetralix) and Bell Heather (E. cinerea)

Site: Thurstaston Common Local Nature Reserve (LNR), Wirral

Cheshire status: Recorded locally on heathlands in the county during the nineteenth century, but the last colony died out in the 1920ís. Re-introduced at one site on the Wirral in 1994, with the colony surviving until 2004. Single-brooded flying from late June to early August.

Resources
  • Learn about the Silver-studded Blue and its relationship with ants in photographs or
  • Film showing the Silver-studded Blue at Thurstaston in 2002 (749k - requires Windows Media Player - Copyright © Dream Catcher Films MMIV)
  • Report on the current status of the Silver-studded Blue at Thurstaston Common (2003)
  • The proposal for re-introduction of the Silver-studded Blue at Thurstaston Common (1994)
  • Report on the re-introduction of the Silver-studded Blue at Thurstaston Common (1994)
More information on external web sites

Photographs on BioImages.org.uk

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Silver-studded Blue Butterflies mating