Woodland Trust

Nature's CalendarNature Detectives

New Years Honour: Congratulations and thanks to Jean Combes OBE for her services to phenology

Holly blue. Roy Battellholly blue

celastrina argiolus

  • Shining, sky blue upperside wings with fine borders
     
  • The female has heavy dark borders to its forewings
     

Where found

Bushy, wooded habitat, often in woodland clearings and margins where its larvae feed on many plants, eg holly, bramble, gorse and ivy.

Common in Southern England, Wales and parts of Northern Ireland.
 

When to look forAdd the dates of when you first record this species

Usually end of April / June