i3 ANTS. 



Tribe 2. ECITONII. 



Neotropical. Workers eyeless or usually with vestigial eyes ; poly- 

 morphic. Antenme 1 2-jointed. Pedicel 2-jointed ( i -jointed in Chclio- 

 inyniic.v ). Female resembling that of Dorylns but with vestigial eye>. 

 Gaster not gaping at the tip. Sting vestigial. Male with 2 closed 

 cubital cells in the wings. Genitalia with strongly developed lamina 

 annularis; subgenital plate furcate. 



Eciton (with subgen. Eciton ("Fig. 145) and Acamatus (Fig. 

 147)), Cheliomyrmex (Fig. 148). 



Tribe 3. LEPTANILLII. 



Paleotropical. Worker minute, monomorphic, eyeless. Antennfe 

 1 2-jointed, inserted further apart than in the preceding tribes. Labial 

 palpi i-jointed. Female resembling that of Dorylus, eyeless. Gaster 

 gaping at the tip. Male minute, with small eyes, ocelli and mandibles 

 and no veins in the wings. 



Leptanilla (Fig. 149). 



Subfamily III. MYRMICIN& Mayr. 



Worker with a sting. Frontal carinae and clypeus usually as in the 

 Ectatommii. Palpal joints commonly reduced in number. Pedicel dis- 

 tinctly 2-jointed; very rarely the postpetiole is campanulate and as 



FIG. 82. Worker of Myrmoteras binghaiui of Tenasserim. (Bingham.) 



broad as the succeeding segment. A stridulatory organ is present in at 

 least many of the genera. Female usually winged, often very different 

 from the worker and much larger ; very rarely ergatoid. Male with 

 cerci (absent in Ancrgatcs). Genitalia usually partly concealed, rarely 

 completely retractile (Carcbara}. Gaster usually short. In some 

 genera there are wingless, ergatoid males. Pupa? always naked, with- 

 out cocoons. 



