Renter: Existing cavities. The females use cavities in stones and rock crevices. The cells are of an irregular shape and are covered with a common layer. (Banaszak & Romasenko, 1989; Stanisavljević, 2000)
Nesting material: The cells, which are built side by side, are entirely built from chewed leaves. The outermost layer of the nest consists of empty cells. Often, several females communally nest in the same fissure or cavity. (Banaszak and Romasenko, 2001; Benoist, 1931; Deleurance, 1949; Ferton, 1901a; Tkalcu, 1971)