d82 THE CANADIAN ENTOMOLOGIST. 



Subfamily III. — Acanthostichince. 



Genera : Acanthostichu?, Mayr, and Ctenopyga, Ashm., new genus ; 

 type C. Townsendi, Ashm., from Mexico. 



Family XLIV. — Fo?ieridce. 

 Subfamily I. — Ponerinse. 



Tribe I. — Onychomyrmicini. Genus Onychomyrmex, Emery. 



Tribe II. — Ceropachyini. Genera: Phyracaces, Emery; Cerapachys, 

 Smith ; Parasycia, Emery ; Sycia, Roger ; Cystias, Emery. 



Tribe III. — Proceratiini. Genera: Discothyrea, Roger; Sysphincta, 

 Roger ; Proceratium, Roger ; Prionopelta, Mayr. 



Tribe IV. — Ponerini. Genera: Centromyrmex, Mayr; Trapezio- 

 pelta, Mayr; Myopias, Mayr; Cryptopone, Emery; Rhopalopone, Emery; 

 and Ponera, Latr. 



Tribe V. — Leptogenyini. Genera: Prionogenys, Emery; Leptogenys, 

 Roger ; Lobopelta, Mayr ; and Simopone, Forel. 



Subfamily II. — Pachycondylinse. 



Tribe I. — Lioponerini. Genus Lioponera, Mayr. 



Tribe II. — Amblyoponini. Genera : Myopopone, Roger; Mystrium, 

 Roger ; Emeryella, Forel ; Stigmatomma, Roger; Amblyopone, Erichson. 



Tribe III. — Cylindromyrmicini. Genera : Cylindromyrmex, Mayr, 

 and Thaumatomyrmex, Mayr. 



Tribe IV — Pachycondylini. Genera: Psalidomyrmex, Andre'; 

 Plectroctena, Smith ; Odontoponera, Mayr ; Diacamma, Mayr ; Bothro- 

 ponera, Mayr ; Ectomomyrmex, Mayr ; ? Heteroponera, Mayr ; Belono- 

 pelta, Mayr ; Pseudoponera, Emery; Pergandea, Ashm., n. g. (So. Am.) ; 

 Brachypone'ra, Emery ; Mesoponera, Emery ; Pachycondyla, Smith ; 

 Neoponera, Emery; Ophthalmoponera, Mayr; and Titusia, Ashm., n. g. 

 (So. Am.). 



Tribe V. — Ectatommini. Genera : Piatythyrea, Mayr ; Alfaria, 

 Emery ; (? = Mictoponera, Forel) ; Stictoponera, Mayr ; Ectatomma, 

 Smith ; Gnaniptogenys, Roger ; Acanthoponera, Mayr ; Paraponera, 

 Smith ; Holcoponera, Mayr ; Rhytidoponera, Mayr ; Chalcoponera, 

 Emery ;  Streblognathus, Mayr ; Dinoponera, Roger ; Paltothyreus, 

 Mayr ; and Megaponera, Mayr. 



Tribe VI. — Drepanognathini. Genus Drepanognathus, Smith. 



Subfamily III. — Myrmeciinse. 



Genus Myrmecia Fabricius. 



Family X LV. — Odontomachida. 



Genera: Odontomachus, Latr.; Champomyrmex, Emery; Anochetus, 

 Mayr ; and Stenomyrmex, Mayr. 



