Unidentified butterfly outside Stratford upon Avon Butterfly Farm

Unidentified butterfly outside Stratford upon Avon Butterfly Farm

Observation - Unidentified butterfly outside Stratford upon Avon Butterfly Farm - UK and Ireland. Description: Because of the location I am sure this is most likely to be an escapee from the farm. Butterfly was spotted in the garden immediately outside the farm. Very active and difficult to photo! Have checked the farms list of species but not been able to make a

Because of the location I am sure this is most likely to be an escapee from the farm. Butterfly was spotted in the garden immediately outside the farm. Very active and difficult to photo! Have checked the farms list of species but not been able to make a definite ID. Suspected Tirumala septentrionis but that species is much lighter blue than this specimen.