A medium-sized, all black, scantily-haired bee with dirty-yellow scopae on the hind legs of the female. In dull weather males are often found curled up in the flowers of yellow- flowered Asteraceae, especially hawkweeds.They may stay shut inside the closed flower overnight.
Known from England, as far north as South Yorkshire, and Wales. It is also present in the Channel Islands.
Overseas: Europe, from Finland south to Spain, and East to Turkey and the Urals.