Polyrhachis (Polyrhachis) lacroixi Zettel, 2019: 62, figs. 4-6 (w.) MALAYSIA. Indomalaya.

Primary type information: Primary type material: holotype worker. Primary type locality: Malaysia: Perak, 40 km southeast of Ipoh, Banjaran Titi Wangea, Ringlet, N 4°25', E 101°23', 900 m a.s.l., 3.iv. (P. Cechovský). Primary type depository: NHMW. Secondary type information: Secondary type material: 2 paratype workers. Secondary type locality: 1 paratype worker with same data as holotype; 1 paratype worker Malaysia: Kelantan, 10 km west of Dabong, Jelawan Jungle, N 5°22', E 101°52', 150-350 m a.s.l. (S. Bečvář). Secondary type depositories: HSZC, NHMW.