Monomorium yemene Collingwood & Agosti, 1996: 357, fig. 32 (w.) YEMEN. Afrotropic.

Primary type information: Primary type material: holotype worker. Primary type locality: Yemen: Taiz, 20.x.1991 (A. van Harten). Secondary type information: Secondary type material: paratype workers (number not stated). Secondary type locality: paratype workers with same data as holotype, paratype workers Yemen: Zingibar-Shuqrah, 21.iii.1993 (C.A. Collingwood). Secondary type depository: NHMB (1 paratype cited by Sharaf et al., 2021: 40, who also say the holotype is presumed lost). Secondary type specimen: CASENT0913865. Type notes: 1) 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. 2) Some van Harten material is present in TAUI.