A bit of an oddity this one.
My id is tentative, only based on it's black colouring. If it was much browner, I would have gone with Villini.
Was very flighty once it woke up, so didn't get any good profile shots.
From a folder of ten-year-old photos.
Genus ID based on wing venation.
On Chrysocephalum apiculatum
Body length approx 6mm