Ant species and genera collected in Yemen and new to the Arabian fauna include Dolioponera sp., Pachycondyla flavopilosa, Probolomyrmex brevirostris, Dicroaspis laevidens, Smithistruma emmae, Bothriomyrmex sp., Camponotus armenius and C. robechii. First descriptions are given of Tetramorium hirsutum n. sp. and Plagiolepis breviscapa n. sp. Additional species for Yemen include the tramp species Technomyrmex albipes and Tetramorium bicarinatum.