The reproductive behaviour of the giant cricket Brachytrupes membranaceus (Drury) was investigated at Gobabeb in the Namib Desert. Reproduction takes place from January to March. During this period the male never leaves its hole; it digs a 'singing chamber' at the burrow entrance where it produces an ear-piercing song to aftract females. After mating, the male seals the female in an isolated branch at the end or the burrow; and then calls other females. Keywords: Activity phases, Buried females, Excavation, Females' phonotaxis, Frequency polygon, Habitat types, Locomotory patterns, Meteorological observations, PoIygamy, Stridulation, Tunnel, Vegetation, Wind directions.