| Ectatomma (Holcoponera) simplex subsp. spurium Forel, 1908 |
| Ectatomma acuminatum Emery, 1896 |
| Ectatomma aztecum Emery, 1901 |
| Ectatomma continuum Mayr, 1887 |
| Ectatomma exaratum Emery, 1901 |
| Ectatomma ferruginea Norton, 1868 |
| Ectatomma fiebrigi Forel, 1909 |
| Ectatomma gibbum Kugler & Brown, 1982 |
| Ectatomma interruptum Mayr, 1887 |
| Ectatomma mucronatum (Roger, 1860) |
| Ectatomma mucronatum var. minor Forel, 1899 |
| Ectatomma muticum Mayr, 1870 |
| Ectatomma obscurum Emery, 1896 |
| Ectatomma parasiticum Feitosa & Fresneau, 2008 |
| Ectatomma ruidum (Roger, 1860) |
| Ectatomma scabrosa Smith, 1862 |
| Ectatomma tuberculatum (Olivier, 1792) |
| Ectatomma tuberculatum subsp. acrista Forel, 1909 |
| Ectatomma tuberculatum var. irregularis Santschi, 1921 |
| Ectatomma tuberculatum var. punctigerum Emery, 1890 |