Fig. 10.—Diagnostic 
tenna; C, Phei 
le and fro i 
3 
oo 28 
Antenna with 10 segments, the last two forming a 
distinct club (Fig. 10B)........ 27. Solenopsis 
Antenna with 12 segments, club either not distinctly 
set off or having three or more segments (Fig. 
10A) 
the posterior margin of the eye (Fig. 10E and 
ee oh ac ese, 29 
Antennal scrobes not reaching the posterior border 
29: 
30. 
Giathegcyven( ligve) 0/=Ole ene tae ee eee 30 
Minute yellow ants, at most 1.5 mm long 
24. Wasmannia 
Brown ants about 2.5 mm long. . 25. Harpagoxenus 
Posterior border of clypeus with a distinct, semi- 
circular, deep, sharp depression (Fig. 10/); 
epinotum with a large lateral flange covering 
part of base of petiole (Fig. 10G). .34. Myrmica 
Posterior border of clypeus with a short, shallow 
depression (Fig. 10£) or its margin merging 
