Fig. 7—Diagnostic parts of worker ants of the subfamily Ponerinae. A, Proceratium, dorsal view of thorax; B, Ponera, dorsal 
iew of thorax; C, Sysphincta, side view of body; D, Ponera, side view of thorax and petiole; E, Proceratium, side view of thorax 
nd abdomen; F, Amblyopone, front view of head; G, Ponera, front view of head; H, Amblyopone, side view of thorax and abdo- 
1en. 
ond segments (Fig. 8) ; abdomen without a sting 
(subfamily Dolichoderinae) ............... 10 
ibfamily ECITONINAE 
. Tarsal claw toothed cn A eee. 1. Labidus 
Tarsal claw without a tooth (Fig. 17B) 
oe 2. Neivamyrmex 
ibfamily PONERINAE 
. Thorax with no sutures visible in dorsal view (Fig. 
ssc ccc ee wives vcs... 8 
Thorax with two sutures visible in dorsal view (Fig. 
eo ds ede eel... ") 
Poe Set Sot 6. Sysphincta 
Terminal portion of abdomen arising from near pos- 
terior end of second gastric segment; petiole high 
and short in lateral view (Fig. 7E) 
3. Amblyopone 
Mandibles only about half length of head (Fig. 7G) ; 
petiole rectangular and high in lateral view (Fig. 
en 4. Ponera 
Subfamily DOLICHODERINAE 
10. 
Epinotum with a flat, U-shaped dorsal projection 
extending posteriorly (Fig. 8B and E) 
7. Dolichoderus 
Epinotum with either a conical projection (Fig. 8D) 
or none (Fig. 8C) 
Epinotum with a conical process (Fig. 8D); man- 
dible with a prominent bladelike terminal tooth, 
maxillary palp with segment 3 as long as seg- 
ments 4, 5, and 6 combined (Fig. 8F) 
8. Dorymyrmex 
No conical process on epinotum (Fig. 8C) ; man- 
dible without a bladelike tooth, maxillary palp 
with segment 3 much shorter than segments 4-6 
COMDINEC Dicer ai kan ere ey oe ae ee 2 
. Node of petiole vestigial (Fig. 8A) .. 10. Tapinoma 
Node of petiole as prominent as in Pigs 8¢ 
9. Iridomyrmex 
Subfamily FORMICINAE 
13. 
14; 
Antenna with 9 segments ..... 11. Brachymyrmex 
Antenna with 12 segments (Fig. 2) 
Mandibles sickle shaped, their inner margins with a 
series of minute bumps or crenulations but no 
fecthig (ER 1g9,0 4 a a eae dee 16. Polyergus 
Mandibles stouter and toothed (Fig. 431) a5 
