Leafcutter bees are solitary bees and dark brown in colour. They can be found nesting in old walls, dead wood, plant stems and cliff faces.
Leafcutter bees secure leaves with their legs and cut the leaves with their mouths. They then use the leaf pieces to construct their nests. They create nests of around 20 cells and can sometimes be found nesting near other females. These groups are called aggregations.
Leafcutter bees are more common in the south of the UK than the north.