pronotal spines present

The pronotum or promesonotum armed with 1-3 pairs of spines or teeth. Used in Antkey to separate Atta and Acromyrmex from all other myrmicine genera.

see also:: 
pronotal spines absent
Illustration: 

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Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith