Whiten Up Our Day?

A new species of UK butterfly, the Cryptic wood white (Liptidea juvernica) has been identified in Northern Ireland (http://www.guardian.co.uk/environment/2011/jul/13/new-butterfly-northern-ireland-wood-white). This species looks identical to the endangered Wood white but is not found in England, Scotland or Wales. It has more chromosomes than the regular Wood white and seems considerably older as a species. This is not, however, the type of species likely to be identified in the 'Big Butterfly Count'.