REVISION OF THE JAPANESE TERMITES. 113 



Nymph. 



Colour. — General colour dull white. Eyes brownish black. 

 Chitinous plates of the abdomen, tibia? and tarsi yellowish. Hairs 

 yellowish brown. 



Head. — Hairy. Nearly as broad as long, narrowed in front. 

 Summit rather flattened, but slightly concave in the middle of the 

 forehead ; clypeus swollen. 



Antennae. — 19- jointed : 1st joint stout, broadest at the apex ; 

 2nd nearly half of the 1st and much narrower ; 3rd-5th small ; 

 6th— 18th turbinate, increasing in size toward the extremity ; 

 19th oval. 



Eyes. — Circular, small, slightly prominent. 



Ocelli. — Indistinct. 



Labrum. — Linguiform, rounded in front. 



Clypeus. — Broad at the base, narrow and convex in front. 



Pronotum. — Hairy, subsemilunar, a little broader than the head, 

 the centre of the anterior margin arcuate, the sides toward the 

 posterior rounded, the posterior margin narrow and slightly 

 concave. 



Mesonotum. — Much broader than the pronotum, when measured 

 with the wing-cases together. 



Fore wing-cases. — Nearly thrice as long as broad, outer margin 

 slightly rounded, end reaching the 3rd abdominal segment. Budi- 

 mental wing veins noticeable. 



Legs. — Stout, rather short. Hind legs not reaching the end 

 of abdomen. 



Abdomen. — Elongate- oval, with dorsum arched and end round- 

 ed. The surface thickly clothed with coarse and fine hairs. Cerci 

 and styli present. 



