60 MR J. G. GOODCHILD ON 
feed not only the young ones, but the other workers as well. 
This they do by regurgitating from their “crops” a little of 
the syrup upon which so many of them appear to subsist. 
The food-ant told off for this work runs from one to another, 
feeding them in turn as far as the supply will go. This 
must be an old habit with ants, for certain species, such, for 
example, as the Honey Ants, Camponotus, have given rise to 
a form of worker (as all these modifications under considera- 
tion are) which does little else than fill itself almost to 
bursting with nectar, and then standing so that any other 
worker can get a sip as she requires it. They have 
developed, in fact, into animated honey-jars. In some parts 
these Honey Ants are collected by the natives and are 
actually sold in the markets as a source of mead, or some 
drink allied to that. Many other modifications of the 
worker ants have been developed. In one species the 
modification may take one form, while, perhaps in a closely 
allied species which has adopted different habits, it may take a 
form quite different. It would require a fair-sized volume 
to describe even a few of these, and I must therefore be 
content to refer to two or three others by little else than 
their title, and leave those who are interested in learning 
more about them to gather the information from Lubbock, 
White, Romanes, Hiiber, or others. Amongst these ants 
may be mentioned the Harvesting Ants; the Hunting Ants, 
Eciton, of Brazil; the Driver Ants, Anomma arcens, of West 
Africa; and the Amazon Ant, Polyergus rufescens, already 
referred to. There is also the Saiiba or Parasol Ants, 
Aicodoma cephalotes, of Brazil, described by Bates in his 
charming Naturalist on the River Amazons, to which further 
reference should be made. Lubbock’s remarks on pp. 21—24 
and pp. 237-9, op. cit., ought also to be consulted. There are 
five classes of individuals in each nest of this species—queens, 
males, the ordinary workers, large workers with very large 
hairy heads, and other large workers with large polished 
heads. Bates describes some of the habits of these ants as 
follows :—“ This ant is seen everywhere about the suburbs of 
Parad marching to and fro in broad columns, and from its 
habit of despoiling the most valuable cultivated trees of 
their foliage, it is a great scourge to the Brazilians. In 
