Brimstone

I love the complementary colours of the purple buddleja and the yellow butterfly. In German we call him a "lemon-butterfly"

Learning of today:
" The name "butterfly" is believed to have originated from the brimstone — which was called the butter-coloured fly by early British naturalists." (Wikipedia)

A late entry:
I fell asleep on the balcony while strolling through journals, woke up 1:45 am, went to bed... 
Early start in the day. Now in a hurry for the dentist for T.