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The 'antennal ridge present' character pops up too early for myrmicines with 3-segmented antennal clubs. It is a reliable but difficult character to interpret for novice ant taxonomists. It could at least come after 'propodeal spines present'.

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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