Melophorus quadratus Heterick et al., 2017: 226, fig. 50 (s.w.) AUSTRALIA (Northern Territory, South Australia). Australasia.

Primary type information: Primary type material: holotype minor worker. Primary type locality: Australia: Northern Territory, ca 9 km. E Finke, 30.ix.1972, ANIC ants vial 15.155 (J.E. Feehan). Primary type depository: ANIC. Secondary type information: Secondary type material: 4 paratype major workers, 7 paratype minor workers. Secondary type localities: 1 paratype major worker with same data as holotype, 3 paratype minor workers Western Australia, Birthday Hill, N Tarcoola, 3.x.1976 (P.J.M. Greenslade), 2 paratype major workers South Australia, 5 km. E Kingoonya, 30.x.1981, 59a (D. Davidson & S. Morton), 3 paratype minor workers South Australia, Victoria Desert, Mt Davies turnoff, 8.x.1976 (P.J.M. Greenslade), 1 paratype major, 1 paratype minor workers South Australia, Victoria Desert, Vokes Hill, 8.x.1976 (P.J.M. Greenslade). Secondary type depositories: ANIC, BMNH, MCZC, SAMA.