Excavator: Ground. Nests are constructed in sparsely vegetated sandy places on paths and embankments(generally 3-8cm, sometimes 10-15cm deep), and can form small aggregations. Females dig nests in soil, their burrows contain usually one brood cell (seldom two).
Nesting material: The brood cells are constructed from petals of Papaver rhoeas, Centaurea cyanus, Malva moschata, Helianthemum sp., or Genista tinctoria. (Westrich 1990). The nest burrow is lined with large pieces of petals, which are eventually used to close the cell. Directly after this first cell closure, a 3mm thick mud plug is built and/or the entrance burrow is filled with sand. (Banaszak and Romasenko, 2001; Benoist, 1931; Duméril, 1860; Ferton, 1902, 1908; Friese, 1923; Müller et al., 1997; Pashina, 1948, 1971; Schmiedeknecht, 1885-1886; Stoeckhert, 1933; Westrich, 1990, 1991)