inO OTHKR MEMBERS OF THE CLASS — INSECTA 



iiiiplieis, do all the work of the colony, — obtain food, iDuild 

 the nest, eare for the young and the ([ueen, and fight the 

 battles. The (|ueen lays the eggs, but is in no sense tlie 

 ruler. 



There are certain kinds of ants that make slaves of other 

 ants. The workei's salh' forth in a bodv to war on other 



Fig. 134. — Mexican cottuii bull \^•ec■^■il ; niiich i'iilar;,;ed, abo\'c; iiutiiral 



size, below. 



ants, and, if successful, they lii'iiig back laiA'ic and ])upa' 

 and rear them as slaA'es in their own colony. One species 

 of slave-make]- aii1s has Ijeconie sd dependent on its slaves 

 that the individuals cannot care for theniseh'es aiul, if 

 left alone, would die. 



On tlir ollii'r liand, some s]iecies of auts care ^•el■v ten- 

 deiiy for ceilain kinds of inse<'ts known as plant lice. The 

 plant lice gi\'e forth a sweet substance, honey dew, of which 

 (he ants are fond. The anis of one species actually build 

 co\'eiings o\'er I he lice to jirotect them, while tho.se of 



