55 s ANTS. 



<>. Mandibles IOHL; ;uid slender uitli coarse, Imkmiculate teeth ; cKpcu- with 

 numerous tecih 'Hi iis anterior border; petiole not constricted pn~- 



tcriorly Stigmatomma Roger. 



Of a dilTerem coi '. iimalion 7. 



7. Claws pectinate 8. 



( 'laws simple 9. 



X. Mandibles edentate, slender; without apical masticatory border. 



l.cplt>C>iys Roger s. sir. 

 Mandibles broader, generally toothed; with distinct masticatory border at 



apex Subgen. Lo/'o/v//,; Mayr. 



(). Median spur of middle and bind legs ale mo developed, lateral spurs lacking; 



small species with vestigial eyes Poucra Latr. 



I'.otb spurs of the middle and hind legs well-developed; medium or large 

 species, with larger eyes 10. 



10. Cheeks with a longitudinal carina Xciipoiicru Kmery. 



Cheeks without a carina i i. 



11. Clypeus flat, separated from the frontal carina? by a scarcely perceptible 



suture or none at all ; body opaque / ) /<;/y//M'>va Mayr. 



Clypeus separated from the frontal carina? by a distinct suture; body sub- 

 opaque or shining 12. 



12. Pronotum more or less marginatc on the sides; middle tibia? not abbreviated 



nor beset with prominent bristles Pachycondyla F. Smith. 



Pronotum not marginate on the sides; middle tibia? short, with prominent 

 bristles on their extensor surfaces. 



Euponcra Forel ; subgen. Pseudoponera Emery. 



Subfamily DORYLIX.K 



i. Claws toothed Eciton Latr. 



Claws simple Subgen. .Icanuitits Km. 



Subfamily MYR: MKIX.K. 



1. Workers absent. .Epcccus Kmery ; Sympheidole Wheeler ; Epiphcidole Wheeler. 

 \\"( irkers present 2. 



2. Clypeus not extending back between the frontal carinre, which are closely 



approximated; antenna? 12-jointed Pscminiiiyniia Guerin. 



Clypeus almost always extending back between the frontal carina?. which are 

 more or less separated, in the opposite case the antenna? are n -jointed.. 3. 



3. Antennal fossae prolonged as grooves for the antennal scapes along the sides 



of the head dorsal to the eyes and covered by the expanded lateral margins 



of the head: antennae ii-jointed Cryptoccnts Kabr. 



Antennal fossae of a different conformation or antennae of a different number 

 of joints 4- 



4. Postpetiole articulated to the dorsal surface of the gaster which is flattened 



dorsally, more convex ventrally and acutely pointed. .Cremastogaster Lund. 



Postpetiole inserted at the anterior end of the gaster which is of the usual 



shape 5 



5. Antennae 6-jointed; head cordiform, antennal fossa? as long as the scapes. 



Stntmi^cnys F. Smith. 

 Antennas with more than six joints 6. 



6. Antennae n-jointed; without a distinct club, or with a club consisting of 



only a single joint " 



Antennal club consisting of several joints, or the antenna? not ii-jointed. . 10. 



7. Integument rough, bearing stiff or hooked hairs 8. 



Integument smoother; hairs scale-like and appressed. . Cy^ln'iiiynnc.r Mayr. 



