Primary type information:
Primary type material: holotype worker. Primary type locality: Indonesia: Java (no further data). Primary type depository: MSNG.
[Justified emendation to Pseudolasius fallax: bold print in the original description (p. 216) has Pseudolasius allax; printer's error as name in preceding key (p. 214) and following check-list (p. 218) of same publication both show the spelling Pseudolasius fallax.]