BEVISION OE THE JAPANESE TERMITES. 



73 





Sei. Coll., Spec. 



No. 27. 



Sei. Coll., Spec. 

 No. 34. 



Length of pronotum 



0.5 m.m. 



0.4 m.m. 



Breadth of pronotum 



0.93 „ 



0.77 „ 



Length of abdomen 



8.5 „ 



12 „ 



Breadth of abdomen 



2.5 „ 



3.0 „ 



Height of abdomen 



2.5 „ 



3.0 „ 



Nymph. 

 (Text-fig. 15). 



Colour. — Mandibles, claws, spines of legs, eyes in well developed 

 specimen brown to dark brown ; wing-cases yellowish, rest of the 

 body being whitish. 



Head. — Oval, a little longer than broad. Summit rather flat, 

 sloping down on the forehead. It is not so hairy as in the imago. — 

 (Text-fig. 15, a). 



Antennae. — 16-1 8 -jointed. Of the specimen with 18 joints: 1st 

 joint large, cylindrical, with sides slightly concave in the middle ; 

 2nd narrower and shorter ; 3rd smallest ; 4th-5th annulate ; 6th-8th 

 orbiculate ; the rest turbinate, increasing in size toward the extremi- 

 ty of the antenna ; the last elongate-oval. — (Text-fig. 15, 6). 



Eyes. — Almost flat and colourless in younger ones, but in 

 older ones, they are slightly projecting on the sides and brown to 

 dark brown in colour. 



Labrum. — Slightly broader than long, anterior margin forming 

 a semicircle, sides converging slightly toward the posterior. — (Text- 

 fig. 14, c). 



Mandibles. — All the characters of the mandibles resemble 



