Thank heavens the cold snap seems to have passed. At least it was not too wet but it was very cold. Milder wet weather for a few days. All stock seems to be OK wthout casualty despite being kept outside covered.
Now have Oak Eggar, Large Copper and Cardinals feeding more as it gets warmer.
Yesterday ova of Kentish Glory arrived. The Kentish Glory is indeed a glorious moth although today it is only to be found in a few sites in Scotland. Nobody seems to be really sure why it was called the 'Kentish' Glory although presumably it occurred in that county at some time in the distant past.
Anyway I have a dilemma

. The larva feed on Birch and Alder which are not in leaf yet so I have brought some twigs with buds of both trees indoors in order to 'force' them into leaf. The caterpillars congregate together chevron style on the twigs when they first emerge. I am keeping the ova outside to delay their emergence for as long as possible.
Will keep you posted.