Vol. xxix] ENTOMOLOGICAL NEWS. IJ 



A Key to the Known Species of South Carolina 

 Ants t with Notes (Hym.). 



By M. R. SMITH, Washington, D. C. 



The writer is very much indebted to Dr. W. M. Wheeler, 

 of Harvard University, for the identification of several species 

 given in this paper and also for the use of a number of his 

 notes. 



Prof. J. S. Hine and Prof. C. L. Metcalf, of Ohio State 

 University, kindly criticized the paper and offered suggestions. 



Key to Subfamilies of Formicidae. 



1. Abdominal pedicel consisting of a single segment 2. 



Abdominal pedicel consisting of two segments 3. 



2. Cloacal orifice terminal, surrounded by a fringe of hairs, 



CAMPONOTINAE 

 Cloacal orifice ventral 4. 



3. Frontal carinae very close together, almost vertical, not covering 



antennal insertions; eyes small or absent; species tropical and 



sub-tropical DORYLINAE 



Frontal carinae not as above; eyes rarely vestigial or absent; 

 species numerous MYRMICINAE 



4. No constriction between the first and second gastric segments, 



anal glands present, which produce a secretion with a rancid 



butter-like odor DOLICHODERINAE 



Caster with a distinct constriction between the first and second 

 segments; frontal carinae separated or close together, 



PONERINAE 



Subfamily PONERINAE. 



Frontal carinae closely approximated; the tip of gaster strongly 

 deflected downard; clypeus with a projection in the middle, 



Sysphincta 

 S. pergandei Roger. 



This species is a member of the above genus, which was 

 once common to the southeastern part of the United States, 

 but is now nearly extinct. The writer has taken only one 

 specimen during two years of collecting in South Carolina. 

 This specimen is rather ferruginous brown in color, has a 

 thorax without sutures, and the tip of the gaster is deflected 

 downward. The specimen was taken from beneath some pine 

 leaves. 



