Key to Neotropical Ectatomminae genera

This key is translated and modified from Baccaro et al (2015) with permission of the authors

This key covers all the Neotropical Ectatomminae genera

1

 * Antennal club well defined and formed by 3 or 4 segments. Reduced eyes, with less tha 15 ommtidia or apparently absent. Tarsal claws simple, without preapical teeth. Petiole pedunculated, with a prominent anteroventral process ..... Typhlomyrmex (Neotropical species ID)
 * Antennae without well defined club. Eyes usually well developed. Tarsal claws in the anterior/medial legs simple, with a preapical tooth, located medially or basally. Petiole sessile or pedunculated, with or without anteroventral process .....2

2
return to couplet 1
 * Pronotum usually with 2 or 3 tubercles. Mesonotum prominent and clearly differentiated from propodeum, separeted by a deep transversal suture. Apex of anterior tibiae in outer lateral view with a queta close to the spur base; dorsum of posterior coxae without projections ..... Ectatomma (Neotropical species ID)
 * Pronotum unarmed and without tubercles. Mesonotum not prominent, forming a continuous line with the propodeum, separeted by a transversal suture. Apex of anterior tibiae in outer lateral view without a queta close to the spur base; dorsum of posterior coxae frequently with a lobe or spine .... Gnamptogenys (Neotropical species ID)