REVISION OF THE JAPANESE TERMITES. 



25 



the apex of the wing, with fewer branches than in the fore wing. 

 Mediana parallel to the radins-sector, arising from the latter at 

 the point about a quarter from the cross-suture. Cubitus almost as 

 in the fore wing, but the basal branches fainter. There is an 

 indication of the rudimental anals. 



Legs. — Covered with hairs. Tibia with 3-4 spines at the 

 end. Tarsus 4 -jointed : first three joints short ; 4th nearly as long 

 as preceding three put together ; plantula between the claws pretty 

 large. — (Text-fig. 3, i). Hind legs not reaching the end of 

 abdomen. 



Abdomen. — The dorsum not very arched, each dorsal plate 

 has two rows of hairs, one arranged transversely across the 

 middle line and the other along the posterior margin. Cerci 

 short, conical, with several hairs at the tip. 



Male : — The 8th ventral plate of the abdomen small ; styli 

 long, conical with a few hairs. 



Female : — Abdomen somewhat larger than that of the male. 

 The ventral plate of the 7th abdominal segment large, pentagonal 

 with rounded corners or subsemilunar. Styli absent. 



Measurements : — 





Length (in m.m.) 



Breadth (in m.m.) 



Body 



8.0 —11.0 





Body with wings 



14.5 —17.5 





Head 



1.7 — 2.0 



1.65—1.85 



Antenna (18-joints) 



2.65 





Labrum 



0.5 — 0.6 



0.7 — 0.8 



Ante-clypeus 



0.27 



0.8 



