REVISION OF THE JAPANESE TERMITES. 



59, 



spines at the terminal end ; tarsus 4 -jointed ; 2nd smallest ; 4th 

 longest with claws and plantnla. Hind legs not reaching the end 

 of abdomen. 



Abdomen. — Short, cylindrical, rounded at the end. Each 

 abdominal plate with several fine hairs along its posterior margin, 

 Cerci short. 



Male : — The 8th ventral plate of the abdomen small, with 

 conical styli. 



Female : — The 6th ventral plate of the abdomen very large, 

 showing a parabolic curve behind ; styli absent. 



Measurements 





Length (in m.m.)' 



Breadth (in m.m.) 



Body 



5.0 —6.0 





Body with wings 



8.0 —9.0 





Head 



1.07—1.13 



0.95—1.0 



Antenna (15-joints) 



1.95 . 





Labrum 



0.3 —0.4 



0.47—0.5 



Ante-clypeus 



0.1 —0.13 



0.47 



Post-clypeus 



0.1 —0.13 



0.5 



Pronotum 



0.57—0.63 



1.2 —1.25 



Mesonotum 



0.67—0.8 





Metanotum 



0.67—0.8 





Fore wing 



6.0 —7.0 



1.7 —1.87 



Hind wing 



6.2 —7.4 



1.7 —1.9 



