This one was one of four sighted at the mouth of the Helford Estuary, in south west Cornwall.
This included the very pale form, Helice, which can easily be mistaken for one of the White butterflies.
The hope is that Clouded Yellows will continue arriving from the continent and numbers will build to be comparable with the last good year of 2006.
Migrant numbers arriving have also been boosted by strong broods from early arrivals.
And in recent days strong second broods of resident butterflies such as Wall Brown, Small Tortoiseshell and Small Pearl-bordered Fritillary have emerged.