REVISION OF THE JAPANESE TERMITES. 



57 





Length (in m.m.) 



Breadth (in m.m.) 



Body 



4.5 —7.0 





Head 



1.0 —1.2 



1.0 —1.13 



Antenna (16-joints) 



1.9 





Labrum 



0.4 



0.53—0.57 



Pronotum 



0.53—0.63 



1.17—1.3 



Soldier. 



(PI. II. Fig. 10 ; Text-fig. 12). 



Colour. — Head black in front, reddish brown in behind. Thorax 

 and legs dark brown. Abdomen reddish brown. Antennae and 

 palpi yellowish brown. 



Head. — Subqnadrate, anterior margin convex and emarginate 

 in the centre, sides and posterior margin very slightly, postero- 

 lateral corners broadly rounded. Very thick, truncate in front, 

 and sloping down toward behind ; truncate surface not smooth, 

 forming an angle of less than a right angle with the mandibles. 

 Sutures obscure. Hairs scanty. — (Text-fig. 12, a, b). 



Antennae. — Short, not very loosely jointed, 11-14 jointed ; of 

 the specimen with 14 joints : 1st joint cylindrical, large ; 2nd 

 smaller ; 3rd narrowest ; 4th very short, annulate ; 5th and 6th orbicu- 

 late ; the others gradually increasing in size toward the extremity ; 

 the last oval, much smaller than the preceding.— (Text-fig. 

 12, c). 



Eyes. — Budimental, represented by a pale spot situated behind 

 the antennal cleft on each side of the head. 



Labrum. — Pentagonal, broader than long. Tip narrowly 



