400 bulletin: museum of comparative zoology. 



2. Gula with long curved hairs (ammochaetae) ; maxillary palpi 



long emmae Forel. 



Gula without ammochaetae, palpi shorter 3 



3. Antennal scapes with suberect hairs aherrans Mayr. 



Antennal scapes without suberect hairs 4 



4. Erect hairs on body short and clavate kraussi Forel. 



Erect hairs on body longer, not clavate 5 



5. Head long and narrow, especially in small workers, thorax slender. 



6 

 Head broader, antennae shorter and thicker, thorax stouter. 



mongolica Emery. 



6. Whole body opaque, densely pubescent korbi Emery. 



At least the gaster very smooth and shining, pubescence very 



dilute or absent 7 



7. Only the front and clypeus finely longitudinally striated. 



nasuta Nylander. 

 Head striated nearly as far back as the occiput. 



nasuta var. striaticeps Forel. 



8. Antennal scapes with erect hairs 9 



Antennal scapes without erect hairs 10 



9. Body yellowish brown, gaster and posterior portion of head 



darker neogagates lasioides Emery. 



Body black or very dark brown, thorax sometimes piceous or 

 reddish neogagates lasioides var. vidua Wheeler. 



10. Erect hairs on dorsal surface of body abundant; body moderately 



shining 11 



Erect hairs on body very sparse or absent; body very smooth 

 and shining limata, sp. nov. 



11. Erect hairs on body very delicate neogagates Emery. 



Erect hairs on body coarser. 



neogagates vars. morbida, var. nov. and vinculans, var. nov. 



Subgenus Neoformica. 



Workers. 



1. Body opaque moki Wheeler. 



Body shining 2 



2. Erect hairs present on gula and petiole 3 



Erect hairs absent on gula and petiole 5 



