Clouded Yellow Butterfly Colias crocea
This butterfly migrates and is not resident in Britain. Restrictions on travel have made it difficult to obtain sufficient breeding stock, so there is quite a waiting list. Adequate supplies in 2021 will depend on the ability to travel to obtain breeding stock.
A great favourite with entomologists and easy to rear on potted Clover. The easy way is to enclose the whole pot in a sleeve size 3. The larvae grow fast and will produce butterflies very quickly, particularly in warm conditions.