Biston betularia - Peppered Moth - normal and carbonaria forms

 Biston betularia - Peppered Moth - normal and carbonaria forms

Observation - Biston betularia - Peppered Moth - normal and carbonaria forms - UK and Ireland. Description: Both normal form and carbonaria forms. Lighter form much commoner in New Forest area ? due to clean air, but both occurred in same trap on this occasion. Neither specimen on its ideal background!

Both "normal" form and "carbonaria" forms. Lighter form much commoner in New Forest area ? due to clean air, but both occurred in same trap on this occasion.
Neither specimen on its ideal background!