Excavator: Dead, rotten wood. The nests are linear or linear branched, and consist of between 2-8 cells. The main passage is between 20-50mm long, and the entrance remans unplugged. The lateral passages are divided into cells by transverse partitions, and the lateral entrance is closed with a plug. The cell walls are without any kind of lining, and the partitions and plugs are made of fine, compressed wood dust. The cell cavity is completely filled with provision with an egg chamber inside (Banaszak & Romasenko, 1998).
Rust et al. (2004) report similar findings on nests investigated from Provence (France)
Mavromoustakis (1948) found nests in a dried trunk of Opuntia (Cactceae) in a garden in Cyprus, with many galleries in the old wood
Stanisavljević (2000) states that the species nests in soft, rotten trees by excavating tubular cavities. Nests are linear with 2-8 cells.