Key to New World genera of Ponerinae Including all of North, Central and South America and the islands of the Caribbean. 1 Clypeus broadly inserted between frontal lobes, which appear flattened in frontal view (Fig. A). Antennal sockets widely sep- arated.............................................................................................. 2 - Clypeus usually narrowly inserted between frontal lobes (Fig. B). Antennal sockets usually closely approximated........ 3 2(1) Mandibles subtriangular, with numerous short teeth (Fig. A)........................................... Platythyrea - Mandibles with three long and attenuated teeth (Fig. B)......................................... Thaumatomyrmex 3(1) Metapleural gland orifice with a posterior, inverted U-shaped cuticular lip (opening lateral and anterior of posterior propodeal face) (Fig. A)........................................................................................ 4 - Metapleural gland orifice without a posterior U-shaped cuticular lip (opening separated from posterior propodeal face by a very narrow, low flange) (Fig. B)........................................................................ 9 4(3) Propodeal spiracle slit-shaped (Fig. A).................................................................... 5 - Propodeal spiracle round or ovoid (Fig. B)................................................................. 7 5(4) Massive ants (head width greater than 4.0 mm). Anterior clypeal margin with a pair of large projecting teeth (Fig. A).................................................................................................. Dinoponera - Smaller ants (head width less than 4.0 mm). Anterior clypeal margin without a pair of large projecting teeth (Fig. B)...... 6 6(5) Hypopygium with a row of stout setae along each side of the sting (sometimes partially hidden by surrounding thinner hairs) (Fig. A). Stridulatory organ absent from A4 pretergite. Arolia not prominent and white. Preocular carinae absent..................................................................................................... Pachycondyla - Hypopygium without a row of stout setae along each side of the sting. Stridulatory organ present on A4 pretergite (Fig. B). Arolia prominent, projecting and usually bright white. Preocular carinae present or absent............ Neoponera (in part) 7(4) Ventral apex of the metatibia with a single spur, which is pectinate (Fig. A)................................ Simopelta - Ventral apex of the metatibia with a large pectinate spur and a smaller simple spur (Fig. B).......................... 8 8(7) Metanotal groove strongly developed and angular, the propodeum well below the mesonotum (Fig. A)........ Mayaponera - Metanotal groove essentially absent to weakly developed, the propodeum level with the mesonotum (Fig. B).................................................................................................. Neoponera (in part) 9(3) Mandibles long and straight, inserted medially on the front of the head. Head with prominent ocular prominences (Fig. A) 10 - Mandibles inserted toward the sides of the front of the head. Head without prominent ocular prominences (Fig. B)...... 11 10(9) Nuchal carina continuously curved, the posterior surface of the head lacking a pair of dark apophyseal lines (Fig. A).................................................................................................... Anochetus - Nuchal carina medially V-shaped, the posterior surface of the head with a pair of dark converging apophyseal lines (Fig. B)........................................................................................... Odontomachus 11(9) Mesotibiae dorsally with abundant stout traction setae (Fig. A)................................................ 12 - Mesotibiae dorsally without abundant stout traction setae (a few stout setae sometimes present near tarsus but never extending along length of tibia) (Fig. B).......................................................................... 13 12(11) Eyes absent in workers, but present in queens. Metapleural gland orifice opening laterally. Head and body without a dense pubescence. Mandible with a basal groove (Fig. A)................................................ Centromyrmex - Eyes usually present in both workers and queens (rarely absent in workers). Metapleural gland orifice opening posteriorly at the posteroventral corner of the metapleuron. Head and body covered by a dense pubescence. Mandible without a basal groove but often with a basal pit (Fig. B)................................................................ Cryptopone 13(11) Ventral apex of the metatibia with both a large pectinate spur and a smaller simple spur (Fig. A)..................... 14 - Ventral apex of the metatibia with a single spur, which is pectinate (Fig. B)...................................... 17 14(13) Tarsal claws usually pectinate, rarely armed with one to three preapical teeth (Fig. A)...................... Leptogenys - Tarsal claws unarmed (Fig. B)......................................................................... 15 15(14) Mesosomal profile discontinuous, the propodeum lower than the mesonotum. Mandible with a basal pit or groove. Propodeal spiracle round. Prora absent from anterior margin of first gastral sternite (Fig. A) (Introduced in SE USA).... Brachyponera - Mesosomal profile nearly continuous, the metanotal groove shallow or absent. Either mandible without a basal pit or groove and propodeal spiracle round or ovoid, or mandible with a basal pit or groove and propodeal spiracle slit-shaped. Prora present on anterior margin of first gastral sternite (Fig. B).......................................................... 16 16(15) Mandible with a basal groove (occasionally weakly developed). Propodeal spiracle slit-shaped (Fig. A)...... Pseudoponera - Mandible without a basal groove (but a ridge sometimes present). Propodeal spiracle round or ovoid (Fig. B)..... Rasopone 17(13) Mandibles narrow, with several long attenuated teeth (Fig. A)......................................... Belonopelta - Mandibles triangular and without long attenuated teeth (Fig. B)............................................... 18 18(17) Subpetiolar process with an anterior fenestra and paired posteroventral teeth (Fig. A).......................... Ponera - Subpetiolar process without both an anterior fenestra and paired posteroventral teeth (Fig. B)............... Hypoponera

Published as part of Schmidt, C. A. & Shattuck, S. O., 2014, The Higher Classification of the Ant Subfamily Ponerinae (Hymenoptera: Formicidae), with a Review of Ponerine Ecology and Behavior, pp. 1-242 in Zootaxa 3817 (1) on pages 18-24, DOI: 10.11646/zootaxa.3817.1.1, http://zenodo.org/record/10086256