The nesting biology of this bee is described by Wcislo and Engel (1996). From Wcislo and Engel (1996) Appendeces 1 and 2: Nests in Soil. Turret or nest chimney is present. Maximum depth of nest in soil is up to 100 cm. The orientation of the main axis of the nest cell is horizontal. A cell lining is present. Cells are nearly sessile, attached to the main tunnel. Cells are attached to the main tunnel with lateral tunnels. The shape of the pollen mass inside the cell is a slightly flattened rectangle. The pollen mass is oriented snugly in the bottom of the cell. The orientation of the main tunnel in the soil is vertical. The main tunnel has no branches. The nest entrance is plugged when female(s) leave the nest. cells are re-used. Nests are dug into horizontal ground. Social behavior, from Wcislo and Engel (1996) Table 1: Solitary based on 16 nests from Kashii, Japan.
