Messor muscatus Collingwood & Agosti, 1996: 320, fig. 7 (w.) OMAN, SAUDI ARABIA, YEMEN. Palearctic.

Primary type information: Primary type material: holotype worker. Primary type locality: Oman: Ras al-Hamra, Muscat, 19.vi.1985 (C. Holzschuh). Primary type depository: unknown (perhaps NHMB, ONHM, WMLC). Secondary type information: Secondary type material: 4 paratype workers. Secondary type locality: 1 paratype worker with same data as holotype, 1 paratype worker Saudi Arabia: Wadi Shijah, 4.v.1976 (W. Büttiker), 2 paratype workers Yemen: Madinat al-Shariq, 7.iii.1993 (C.A. Collingwood). Secondary type depository: unknown (perhaps NHMB, ONHM, 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.