Pristomyrmex costatus Wang, 2003a: 434, figs. 123-126 (w.q.) WEST MALAYSIA. Indomalaya.

Primary type information: Primary type material: holotype worker. Primary type locality: Malaysia: Negri Sembilan, Pasoh Forest Reserve, xi.1994 (M. Brendell, K. Jackson & S. Lewis). Primary type depository: BMNH. Secondary type information: Secondary type material: 3 paratype workers. Secondary type locality: Malaysia: Sabah (“N Borneo”) (E. Mjöberg). Secondary type depository: not recorded.