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SPOTTED YELLOW/BLACK LEAF BEETLE (CRYPTOCEPHALUS DECEMMACULTUS)
LOCAL BIODIVERSITY ACTION PLAN

Links to associated HAPs

None

Current Status

There is still little known about the presence of this beetle in the UK. It has been recently confirmed that this species exists in good numbers in Cheshire at Wybunbury Moss and there is also a modern record for a site near Wigan, Greater Manchester. Other old records exist for several extremely localised, widely separated populations in east Sussex, Grampian and Tayside. However, its presence in Staffordshire is now uncertain.

Wybunbury MossThe adults feed on young birch (betula) less than 2 metres high and have been swept from dwarf trees in deciduous woodland during June. It was previously assumed that the larvae occur in ant nests like other members of the genus, but this is now being questioned.

Cryptocephalus decemmacultus is nationally rare and is a UK priority species as defined in the UK Biodiversity Steering Group Tranche 2 Action Plans report 1998. It is also listed as a Category 2 species in the invertebrate Red Data Book.

Threats

How are we helping to conserve the Spotted Yellow/Black Leaf Beetle in the Cheshire region?

Objectives, Targets and Actions

OBJECTIVES

LOCAL TARGETS

To ensure the continued survival of the species in its known location at Wybunbury Moss.

Targets awaited 

ACTIONS REQUIRED

  • Investigate to determine the species exact ecological requirements.
  • Thorough survey of all potential sites.
  • Protection of all trees known to be used by feeding adults.
  • Ensure the continued presence of young birch trees.
  • Monitor the existing population and encourage expansion to other suitable habitats.
  • Discourage the complete felling of birch on potentially suitable sites.
  • Raise the image of beetles in general.

Progress so far

1997 - 2006 Action Completed
  • To raise the image of the spotted yellow/black leaf beetle it was used as part of the logo for the "Tomorrows World for local wildlife" conference held in October 2000.

How to find out more about the Spotted Yellow/Black Leaf Beetle

Information about Wybunbury Moss and its associated wildlife - http://www.dkwright.co.uk/Wybunbury_Moss_Reserve.htm

Contact details

LBAP Chair Cheshire Wildlife Trust
Phone: 01948 820728

References & Glossary

Shirt, D. B. (Ed.) (1997): British Red Data Book: 2. Insects. Nature Conservation Council.
A Biodiversity Audit of North West England: UK Steering Group (1999) Mr. John Webb.

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