Pictorial key to the ant genera of Illinois

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

Fig. 48 Stigmatomma pallipes (antweb.org)

Fig. 49 Stigmatomma pallipes (antweb.org)

Fig. 50 Hypoponera opacior (antweb.org)

Fig. 51 Hypoponera opacior (antweb.org)

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A Anterior margin of clypeus denticulate.

 

A' Mandibles long, strongly projecting below clypeal margin and with numerous, bidenticulate teeth that are found along the entire inner surface.

 

B Petiole broadly attached to abdominal segment 3.

 

C Petiole with distinct front and dorsal faces but without a distinct sloping posterior face.

 

...Stigmatomma
14'
AA Anterior margin of clypeus not denticulate.

 

BB Petiole narrowly attached to abdominal segment 3.

 

CC Petiole with distinct front, top, and posterior faces; petiole's attachment to the third abdominal segment narrow and strongly constricted.

 

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