REVISION OF THE JAPANESE TERMITES. 



99 



Mandibles. — 5 -toothed on both right and left. Almost like 

 those of the imago. — (Text-fig. 23, d, e). 



Pronotnm. — Hairy. Nearly 

 as broad as the head. Slightly 

 concave in front, rounded on 

 sides and emarginate behind. — 

 (Text-fig. 23, f). 



Mesonotum. — Anterior and 

 posterior margins concave. Fore 

 wing-cases thrice as long as 

 broad, rudimental veins notice- 

 able. 



Metanotum. — Nearly same 

 as the metanotum. End of the 

 hind wing-case reaching the 3rd 

 abdominal segment. 



Text-fig. 23. Coptotermes formosamts. 

 Nymph, a, Head ; b, Antenna ; c, Labrum ; 

 d, Eight mandible; e, Left mandible; f, 

 Pronotum. (a, f x20; b— ex 33). 



Legs. — Tibia nearly as broad as the femur, provided with 2 or 

 3 terminal spines. Hind legs reaching the 5th abdominal segment. 



Abdomen. — Clothed with long and short hairs, cylindrical, end 

 rounded. Cerci and styli present. 



Measurements : — 





Length (in m.m.) 



Breadth (in m.m.) 



Body 



6.0 —7.5 





Head 



1.1 —1.4 



1.17—1.4 



Antenna (19-joints) 



1.7 





Labrum 



0.4 —0.47 



0.43—0.5 



Pronotum 



0.68 -0.7 



1.17- 1.4 



