promesonotum
no metanotal groove
no metanotal groove
promesonotum evenly convex, not separated from propodeum by metanotal groove
metanotal groove
metanotal groove
promesonotum separated from propodeum by metanotal groove
3 pair promesonotal spines
3 pair promesonotal spines
three pairs of spines or teeth on dorsum of promesonotum
2 pair promesonotal spines
2 pair promesonotal spines
two pairs of spines or teeth on dorsum of promesonotum
Gradual downward slope of the mesosomal profile
Gradual downward slope of the mesosomal profile
The profile of the mesosoma slopes gently and gradually down as it approaches the posterior margin. There is not a sudden and steep decline from the posterior of promesonotum to the anterior of the propodeum. Used in Antkey to separate Cardiocondyla, Crematogaster, Myrmica, Tetramorium, Vollenhovia and Wasmannia from Pheidole.
Gradual downward slope of the mesosomal profile
Gradual downward slope of the mesosomal profile
The gradual downward slope of the mesosomal profile is broken by a steep decline from the posterior of promesonotum to the anterior of the propodeum. Used in Antkey to separate Pheidole from Cardiocondyla, Crematogaster, Myrmica, Tetramorium, Vollenhovia and Wasmannia.