150 



Fig. 158. White ant. 



(a) queen ; (6) nymph of ivinged female ; (c) worker; (d} soldier. 

 All enlarged. (From U. 8. Dept. Agric.) 



Wood ants are very difficult to control, when they 

 have become established in or about buildings. The nests 

 can sometimes be located, and if these can be thoroughly 

 destroyed the numbers of the ants can be greatly reduced. 

 These nests are often to be seen as irregular woody masses 

 on the trunks of trees, and where they are thus found 

 they may be cut down and removed. Domestic fowls and 

 turkeys are very fond of these insects, and will eagerly 

 eat them if the nests are broken up so that they are 

 exposed. Sometimes, however, no nest can be found ; but 

 if any of their galleries can be located, many of the ants 

 can be killed by means of poisons, A mixture of arsenic 



