the stone was lifted the ants swarmed from the 

 galleries into these chambers, which were packed 

 with the large cocoons. There were thousands of 

 pupae, of a delicate brown tint, looking wonder- 

 fully clean and fresh, but with such celerity did 

 the ants work that inside of ten minutes all were 

 carried from view. 



Among the rest were perhaps a dozen young 

 ants, the head and thorax being white and the 

 abdomen a pale mauve. These creatures moved 

 feebly about, taking no interest in the proceedings, 

 and were for the most part seized by the workers 

 and conveyed into the galleries. Apparently they 

 were individuals that had just emerged from their 

 pupa-cases. 



Under another large stone were two very num- 

 erous colonies living side by side, of different 

 species. The nests were, of course, entirely sep- 

 arate and under opposite ends of the stone. The 

 smaller of the two appeared to be stinging ants, 

 for they clustered in great numbers over their 

 small pupae, elevating their abdomens in a threat- 

 ening manner like so many diminutive scorpions. 

 The other species were large and aftive ants of a 

 polished bronze hue. Their pupae were naked, 



95 



