Tortoishell or Peacock caterpillars?

Tortoishell or Peacock caterpillars?

Observation - Tortoishell or Peacock caterpillars? . Description: Anyone with an easy method to differentiate black nettle-feeding caterpillars? - I have seen a few small tortoishells, the odd peacock and lots of Red Admirals this year.

Anyone with an easy method to differentiate black nettle-feeding caterpillars? - I have seen a few small tortoishells, the odd peacock and lots of Red Admirals this year.