CLASSIFICATION 



II 



Suborder Isoptera. Eyes facetted, vestigial or absent. Antennae 

 long and filamentous or short and moniliform, nine- to thirty-one- 



FIG. 14. Schistocerca americana. Slightly re- 

 duced. 



FIG. 15. Hemimerus talpoides. Length, 

 11.5 mm. After HANSEN. 



segmented. Mouth parts prognathous or hypognathous. 1 Thoracic 

 segments simple, similar and equal ; pro thorax large, free. Tarsi four- or 

 five-segmented. Alate or apter- 

 ous. Wings elongate, similar, 

 equal, membranous, delicate, with 

 few veins, sometimes with an in- 

 deffnite reticulation, with a char- 

 acteristic basal suture a ong which 

 the wing breaks off; hind wings not 

 folded. Abdomen elongate, wieh 

 ten segments and a pair of short 

 two- to six-segmented eerie In- 



tegument weak. Social in habit FJG ^_ oligotoma michaelL Length ia$ 

 and polymorphic; known as white mm. After MCLACHLAN. 



ants. Example, Termes (Fig. 

 28o)Aboutonethousanddescribedspecies. 



Suborder Embioptera. Eyes facetted. Antennae with fifteen to 

 thirty-one or more segments. Mouth partsprognathous; with a labial 



1 Prognathous, directed forward, hypognathous, directed downward. 



