102 SOUTH AFRICAN TERMITES. 



Hainitermes hastatus. 

 Fig. 207. — The cardinal and bases of the principal tracheae of wing- 

 sac ; also the bases of the leg trachea and of the bunches of thoracic 

 tracheae. 



Promirotermes sp. 

 Fig. 208. — Wing-sac with three normal tracheae (in solid block) and 

 an extra trachea (? medial), also an unusually large branch to the 

 cubital. 



