Melophorus gracilis Heterick et al., 2017: 186, fig. 37 (s.w.) AUSTRALIA (Western Australia). Australasia.

Primary type information: Primary type material: holotype minor worker. Primary type locality: Australia: Western Australia, Nita Downs turnoff, 19°04.712’S, 121°39.178’E, 14.ii.2013, sample 74, ABRS M256 (B.E. Heterick). Primary type depository: WAMP. Secondary type information: Secondary type material: 1 paratype major workers, 5 paratype minor workers. Secondary type localities: 1 paratype major, 1 paratype minor workers with same data as holotype, 1 paratype minor worker Western Australia, 5 km. N Pardoo Hill, 14.ii.2013, sample 80, ABRS M265 (B.E. Heterick), 3 paratype minor workers Western Australia, 42 mi. N Mundiwindi, 26.iv.1963, 29782, A395 (McInnes & Dowse). Secondary type depositories: ANIC, MCZC, WAMP.