REVISION OF THE JAPANESE TERMITES. 



97 



runs along the posterior border of the radius -sector. Mediana faint, 

 runs near the cubitus, simple or bifurcates once or twice in apical 

 portion. Cubitus runs through the middle of the wing but not 

 reaches the apex, with 7-10 branches, of which about the 3 inner- 

 most are thickened and coloured brown. — (Text-fig. 22, g). 



Hind wings. — Wing- stump smaller than that of the fore wings, 

 cross-suture reaching the middle of metanotum. Wing membrane 

 more or less broader than that of the fore wings. Mediana arises 

 from the radius-sector just beyond the cross-suture. — (Text-fig. 22, h). 



Legs. — Hairy. Femur much broad ; tibia slender, with 2-3 

 sharp spines at the terminal end. Tarsus 4-jointed ; 2nd joint 

 smallest and the 4th longer than the preceding three put together. 

 Hind legs reaching the end of abdomen or sometimes exceeding it. 



Abdomen. — Thickly covered with long hairs. Elongate-oval, 

 end rounded, each dorsal plate with a pale spot on each side. 

 Cerci large, 2 -jointed ; basal joint large. 



Male : — The 8th ventral plate of the abdomen very short and 

 narrow. Styli present. 



Female : — The ventral plates of the abdomen becoming larger 

 posteriorly and the 6th largest, measuring 0.8 mm. in length and 

 1.9 mm. in breadth. 



Measurements 





Length (in m.m.) 



Breadth (in m.m.) 



Body 



6.5 — 8.5 





Body with wings 



14.0 —15.5 





Head 



1.3 — 1.47 



1.5 —1.62 



Antenna (21-joints) 



2.9 





