Pictorial key to the ant genera of Illinois

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

Fig. 80 Monomorium minimum (antweb.org)

Fig. 81 Monomorium pharaonis (antweb.org)

Fig. 82 Stenamma brevicorne (antweb.org)

Fig. 83 Stenamma brevicorne (antweb.org)

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A Combining the following: anteromedian portion of clypeus notably elevated and bicarinate (carinae usually ending to form 2 submedian teeth on the anterior clypeal margin).

 

B Propodeum rounded or rarely angular, unarmed, without spines or teeth.

 

C Antennal club 3-segmented.

 

...Monomorium
25'
AA Clypeus generally not bicarinate.

 

BB If clypeus bicarinate, propodeum usually armed with teeth or short spines.

 

CC Antennal club variable, sometimes absent.
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