Monomorium riyadhe Collingwood & Agosti, 1996: 354, fig. 26 (w.) SAUDI ARABIA. Afrotropic.

Primary type information: Primary type material: holotype worker. Primary type locality: Saudi Arabia: Riyadh Agricultural Station, 26.iii.1983 (C.A. Collingwood). Primary type depository: unknown (perhaps WMLC). Type notes: Collingwood & Agosti, 1996: 301, say “All type material is housed in NHMB and duplicates placed in appropriate institutes and museums of the contributing countries”; this apparently was never done.