Peppered Moth (Biston betularia)

Another cold night, another lean morning in the moth trap. Only 9 moths of 8 different species, compared with 24 moths of 15 species on the same date last year (3 June). This Peppered Moth was not something I catch that often. The species has a pale form (like this), one with darker grey markings and one that is nearly black. In polluted areas where the trees are blackened by soot, etc, the darker forms predominate - but no issues with air quality here, just currently with night-time air temperature.