from The Century Dictionary.
- noun A genus of ants called
foragingor army ants, usually placed in the family Myrmicidæ, as the petiole of the abdomen has two nodes.
Sorry, no etymologies found.
Some were rushing into the passages, others were seen assisting their comrades to lift out the bodies of the formicae, while others were tearing them in pieces -- their weight being too great for that of a single eciton.
The Western World Picturesque Sketches of Nature and Natural History in North and South America William Henry Giles Kingston 1847
These were cut into three or four pieces, each of which was lifted up by an eciton and carried off.
On the Banks of the Amazon William Henry Giles Kingston 1847