Lesser Swallow Prominent cat's

The eggs collected when the female deposited on the egg box on 27th April hatched on 14th May. They seem to be growing well now and are probably around 23mm long. I lost a couple but 10 of the original 12 seem to be doing well on Silver Birch leaves.

 Lesser Swallow Prominent

I'm pleased the caterpillars match the ones on Plate 35 of 'The Field Guide to Caterpillars...!'

I'm not sure how long it will be before they pupate - hope they last till then and wonder if that will be a tricky stage (?)

I also managed to find this green caterpillar in the pot, again on birch leaves. No idea what this might be yet. Wait and see.