Pictorial key to the ant genera of Illinois

by N.C. Wilkins and S.B. Menke

Fig. 99 Temnothorax texanus (antweb.org)

Fig. 100 Stenamma brevicorne (antweb.org)

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A Metanotal impression absent. Mesosomal profile without interruption, evenly convex or flattened or very slightly undulating.

 

...Temnothorax
31'
AA Metanotal impression small but present, interrupting the mesosomal profile in side view as a modest notch or indentation.
32