ELEMENTARY ENTOMOLOGY 



kings and queens are winged. The wings are long and narrow, 

 somewhat leathery in texture, and are furnished with numerous 



but somewhat indistinct 

 veins, are about equal in 

 size, and are laid flat on 

 the back when at rest. 

 They have well-devel- 

 oped biting mouth-parts, 

 the mandibles of the sol- 

 diers projecting well for- 

 ward of the huge head. 

 They are most abundant 

 in the tropics, where 

 they are serious pests of 

 all kinds of woodwork, 

 mining into foundations, 

 posts, furniture, and 

 whatever happens in 

 their way. The nests of 

 the tropical species are 



FIG. 134. White ants' nest on trunk of tree (at 

 arrow) in Cuba 



(Photograph by Slingerland) 



often of large size, form- 

 ing mounds sometimes twelve feet high, or huge, roundish masses 

 several feet thick attached to trees. But one species ( Termesflavipes) 



FIG. 135. Psocus liiieatits. (Much enlarged) 

 (After J. B. Smith) 



is common throughout the United States ; it is usually found in 

 old logs and stumps, but sometimes establishes its nests beneath 



