Key to Subfamilies of Formicidae in the Southeastern United States (based on workers) (modified from Creighton (1950) and Bolton (1994) Couplet 3

Key to Subfamilies of Formicidae in the Southeastern United States (based on workers) (modified from Creighton (1950) and Bolton (1994) Couplet 3 Previous couplet \| Start Subfamily Key over
3(2) Anterior portion of clypeus denticulate; petiole joined to gaster broadly, separated dorsally and laterally by a constriction only, petiole does not have a free posterior face (figure 5); helcium broad and attached high on gastral face (as seen in profile)...Amblyoponinae	3' Anterior margin of clypeus not denticulate; petiole joined to gaster narrowly by thin juction, petiole usually has a free posterior face (figure 6); helcium narrow and attached near or below midpoint of gaster ...couplet 4

Figure 5. Petiole and gaster of Stigmatomma pallipes showing broad attachment of petiole to gaster.	Figure 6. Petiole and gaster of Ponera pennsylvanica showing narrow junction between petiole and gaster

Author-Joe MacGown: jmacgown@entomology.msstate.edu
The ant web site was uploaded on 6 March 2003 and was last updated on 7 February 2022 (specific pages may have different uploaded and updated dates)
Drawings and photographs by Joe MacGown (unless otherwise noted) and copyrighted by the Mississippi Entomological Museum

The development of this web site was supported in part by the National Institute of Food and Agriculture, United States Department of Agriculture, under Project No. MIS-012040 and the USDA-ARS Areawide Management of Imported Fire Ant Project (Richard L. Brown, Principal Investigator).