Excavator: Ground. In eastern Europe the species often occurs in large aggregations; usually in sunlit slopes, less commonly in horizontal situations (Kocourek, 1966).
This species builds nests in the ground, including fields, and they create aggregations, sometimes numbering up to several thousand nests (Wafa et al. 1972). In some places the density of nests can reach up to 100 per square metre. However, in most parts of Europe, they nest in very small aggregations or alone. Each nest consists of a main burrow (length of about 20 cm) and lateral burrows at the end of which is located a single cell. Inside the cell, the female stores a spherical pollen loaf, on which she lays a single egg. The cell walls are coated with a moisture-resistant secretary waxy substance that is produced from Dufour gland (Radchenko, 2015).