Genus Polyrhachis (Myrmatopa) (Formicinae)

• Myrmatopa Forel, 1915b: 107 (as subgenus of Polyrhachis) . Type species: Polyrhachis schang Forel, by original designation. Myrmatopa provisional junior synonym of Polyrhachis: Brown, 1973b: 182 (unconfirmed).
• Irenea Donisthorpe, 1938h: 502 (as subgenus of Dolichoderus) . Type species: Dolichoderus (Irenea) omyrmex Donisthorpe, by original designation. Irenea raised to genus: Donisthorpe, 1941h: 59. Synonymy: Brown, W.L. 1973b: 181 (Irenea provisional junior synonym of Polyrhachis) ; Bolton, 1994: 50 (Irenea junior synonym of Polyrhachis) .