REVISION OF THE JAPANESE TEEMITES. 



77 





Length (in m.m.) 



Breadth (in m.m.) 



Labrum 



0.3 —0.33 



0.37 



Clypeus 



0.17—0.2 



0.47 



Pronotnm 



0.4 —0.43 



0.83—0.93 



Mesonotum 



0.4 —0.43 



0.83—0.90 



Metanotum 



0.4 —0.43 



0.83—0.90 



Abdomen 



3.5 —5.5 



1.5 —2.0 



Soldier. 

 (PI. II. Pig. 15 ; Text-fig. 17). 



Colour. — Head pale brownish yellow, darker toward the anteri- 

 or. Mandibles reddish brown at the base, darker toward the tip. 

 Margin of the pronotnm pale brown ; rest whitish. 



Head. — Nearly twice as long as broad, sides parallel, postero- 

 lateral corners ronnded. Summit flat, with a small tubercle-like 

 process in front of the fontanelle and sloping down toward the 

 forehead. A median foramen at the anterior third of the head. 

 Surface with scattered hairs. — (Text-fig. 17, a). 



Antennae. — 14-1 8 -jointed. To speak of specimen with 17-joints: 

 1st joint large, cylindrical, obscurely concave on sides ; 2nd narrower 

 and shorter ; 3rd annulate and the smallest ; 4th-6th short, or- 

 biculate ; about three joints following circular ; the others turbinate, 

 and more stalked toward the extremity of the antenna ; the last 

 elongate-oval, rather small. — (Text-fig. 17, b). 



Labrum. — Lanceolate, longer than broad. Tip white, rather 

 pointed with two long bristles. — (Text-fig. 17, c). 



Ante-clypeus. — Anterior and posterior margins nearly straight, 



