Chimney Sweeper

Chimney Sweeper

Observation - Chimney Sweeper - UK and Ireland. Description: found this in my photo library, I am away from my books and have tried the internet but failed to identify it. From memory it was small, 15-20 mm wing, very black except for the white tips

found this in my photo library, I am away from my books and have tried the internet but failed to identify it.
From memory it was small, 15-20 mm wing, very black except for the white tips