Andrena clarkella is a uncommon solitary bee, often favouring sandy places such as heathland. They are one of the first species to appear in the Spring, flying from April onwards and is a specialist collector of willow (Salix species) pollen. It has only been recorded at one site on South Uist, but as it was not recorded until 2015, it is possible that it has been overlooked.
The females are very distinctive with chestnut on the top of the thorax, a black head and abdomen with orange hairs on the hind legs. The males are much slighter with pale faces.