Rarities

I've been lazy here, mostly because the sun has compelled me to work in the garden, with some progress in de-jungling it, although jungle in its proper place is one of my favourite habitats.
I haven't ignored my camera though, on a pootle along the canal the other day I saw a young man staring intently at something:

There's been a colony of these little fellows in a local pond for years, but I've never seen them here before, I hope he has a mate so we can watch the family grow.

This is a cactus I've had for longer than L&A, flowering briefly for the first time, I have no idea what's different apart from the lack of sun, but for a desert dweller it seems odd, maybe it's a "Oh help the world's coming to an end, I need to save the children as seeds" response. the little plant itself  (Lophophora williamsii) has hardly grown in all that time, & been re-potted once.