Euthrix potatoria and Dichodontium palustre

I found a caterpillar. I think it is the caterpillar of the Drinker moth (Euthrix potatoria).

And I found another moss, which I think is Marsh Forklet-moss (Dichodontium palustre). Its light, translucent stars were very clear in amongst other mosses on the front terrace when I wandered out with my mug of tea this morning.