Reproduction
This wasp adapts easily to habitat change and the nests are a common sight, often in small groups, attached to the walls of buildings in urban areas. The nest cell is roughly spherical, up to 18 mm in diameter, with a single small entrance hole. A single egg is laid in each cell: the adult wasp stocks the cell with paralyzed living food for the emerging wasp larva to feed on. The nest is only used once by ''Z. argillaceum'' but is often reused by other potter wasps such as ''Pachodynerus spp''.
Predators
''Z. argillaceum'' is often affected by parasitoids such as the eulophid ''Melittobia australica''.References:
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