OUR ANTS. 55 



writes very fully of this species. He declares it to be, viewed 

 individually, the most intelligent of all the ants. 



87. D. scalprafum (Smith). 



Tenasserim Major Bingham . 



Major Bingham describes it as "very common; makes a big 

 ant heap in paddy fields ; stings and bites virulently." 



88. Diacamma sp. 



Travancore H. S. Ferguson. 



The identity of this species has not yet been definitely settled ; 

 but it is believed to be undescribed. 



89. D. versicolor (Smith). 



Barrackpore G. A. J. Rothney. 



Gen. 21. Ponera (Lin.). 

 Knot transverse, vertical, unarmed ; claws simple ; second joint 

 of antennse longer than the third. 



90. P. Jerdoni (Forel in M S.). 

 Poena Districts. 



Calcutta G. A. J. Rothney. 



The only nest of this species I have ever found was under a stone 

 and very shallow, the main chamber being barely three inches 

 below the surface. 



91. P. Gleadowi (Forel in MS.). 

 Poona Districts. 



This is not an uncommon species in the Dekhan, but owing to 

 its small size and sluggish movements, is easily overlooked. I have 

 found it several times, always under stones on very moist ground. 

 Mr. Aitken sent me a variety from Kanara. 



92. P. truncata (Smith). 



Calcutta G. A. J. Rothney. 



Gen. 22. Harpegnathus (Jerdon). 

 The monstrous mandibles of this genus render it recognizable at 

 a glance from any other ant. Whatever doubts there may be, as 

 to the jumping powers of dontomachus arxd AnocJietus, I, at lesist, 

 have none, as to those of Harpegnathus. The single specimen of the 

 genus, which I have had the luck to find, made leaps of a foot or 

 18 inches with perfect ease, exactly like a grasshopper. I had 



