Pictorial key to the ant genera of Illinois

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

Fig. 30 Prenolepis imparis (antweb.org)

Fig. 31 Prenolepis imparis (antweb.org)

Fig. 32 Prenolepis imparis (antweb.org)

Fig. 33 Nylanderia terricola (antweb.org)

Fig. 34 Nylanderia wojciki (antweb.org)

9
A Mesosoma, in dorsal view, strongly constricted immediately behind pronotum.

 

B Erect hairs on mesosomal dorsum slender, golden or brownish, do not occur in pairs on mesosomal dorsum.

 

B' Scape and tibia lacking erect hairs (short pubescence present).

 

C With head in full-face view, most or all of eye posterior to middle of sides.

 

...Prenolepis
9'
AA Mesosoma, in dorsal view, only slightly constricted behind pronotum.

 

BB Erect hairs on mesosomal dorsum coarse, bristle-like, often dark brown or black, occurring in pairs on the mesosomal dorsum.

 

BB' Scape and tibiae often with erect hairs.

 

CC Head in full-face view, most or all of eye at or anterior to middle of sides.

 

...Nylanderia