Key to Neotropical Ectatomminae genera

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This key is translated and modified from Baccaro et al (2015)[1] 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)
Typhlomyrmex major casent0915317 p 1 high.jpg
  • 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)
Ectatomma permagnum casent0173378 profile 1.jpg
  • 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)
Gnamptogenys concinna P casent0179454.jpg

References

  1. Baccaro, F.; Feitosa, R. F.; Fernando, F.; Fernandes, I. O.; Izzo, T. J.; de Souza, J. L. P.; Solar, R. Guia para os gêneros de formigas do Brasil. Editora Inpa. Manaus, 2015. 388 pp.