White-letter Hairstreak and Ectoedemia minimella

There were a few sunny spells this morning and, during one of them, I was lucky enough to be able to find this White-letter Hairstreak (Satyrium w-album) on a local elm.
I also received a letter from Harry Beaumont today:
A specimen from my excursion to Timble Ings, last Saturday, turns out to be Ectoedemia minimella rather than the Stigmella sp. that I had suspected.

White-letter Hairstreak (Satyrium w-album)

Both my White-letter Hairstreaks have emerged this week.

This is the best photograph that I managed to achieve yesterday evening before this second individual flew off to the top of my garden elm tree.

*

A superb little butterfly!

White-letter Hairstreak larva

I found this White-letter Hairstreak caterpillar feeding on Wych Elm at Hollins Hall Hotel, Baildon today.

I think it is almost full-grown with a length of 15-16mm so I should hopefully be able to keep it until it pupates with the possibility of an adult emerging in about a month.