REVISION OF THE JAPANESE TERMITES. 



101 



and incurved. Eight mandible with a very small tooth at thé 



i 



base. — (Text-fig. 24, d). Left mandible with 4 faint teeth and; 

 a large round knob below. — (Text-fig. 24, e). 



Pronotum. — Hairy. Nar- 

 rower than the head. Anterior 

 margin broader iihan the pos- 

 terior, both slightly bilobed, 

 corners broadly rounded. — (Text- 

 fig. 24, f). 



Mesonotum. — Nearly as 



broad as the pronotum, but 

 shorter, concave in front, 

 diverging posteriorly on sides 

 and convex behind. 



Metanotum. — Almost simi- 

 lar in shape to the mesonotum, 

 but somewhat shorter and 

 broader. 



Legs. — Slender, claws and spines distinct. Hind legs reaching 

 or exceeding the end of abdomen. 



Abdomen. — Covered with coarse hairs. Narrow at the base, 

 swelling in the middle, rounded at the end. Cerci large, styli 

 short, conical, with Ions; hairs. 



Text-fig. 24. Coptotermes formosa- 

 nus. Soldier, a, Head ; b, Antenna ; c, 

 Labrum ; d, Right mandible ; e, Left man- 

 dible; f, Pronotum. (a, fx20; b— ex 33). 



Measurements 





Length (in m.m.) 



Breadth (in m.m.) 



Body 



4.5 —6.5 





Head 



1.57—1.67 



1.1 —1.23 



