Key to Iridomyrmex of the southwestern Australian Botanical Province

This key to minor workers is based on: [[Media:Heterick 2009.pdf|Heterick, B. E. 2009a. A guide to the ants of South-western Australia. Records of the Western Australian Museum, Supplement 76: 1-206. Part 1 PDF]]

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 * Australia
 * Iridomyrmex

1

 * Propodeum large, conical (Iridomyrmex conifer species-group) (Figure 147) . . . . . 2


 * Propodeum smaller, not conical (Figure 148) . . . . . 4

2
return to couplet #1
 * Erect or suberect setae on pronotum usually lacking, but where present never more than 6 . . . . . Iridomyrmex conifer


 * More than 8 erect or suberect setae present on pronotum . . . . . 3