REVISION OF THE JAPANESE TEEMITES. 



69 



joint large, twice as long as broad, slightly concave on sides ; 2nd 

 much shorter and narrower; 3rd smallest, annulate; 4th- 7th or- 

 biculate ; the following joints turbinate, gradually increasing in 

 size and more stalked toward the extremity of antenna ; 17th 

 elongate-oval. — (Text-fig. 14, b). 



Eyes. — Round, very slightly projecting on the sides of head. 



Ocelli. — Hound, slightly prominent, separated from the eyes 

 by its diameter. 



Labrum. — Broadest at the 

 middle, nearly as long as broad, 

 rounded in front and slightly 

 converging posteriorly. — 



(Text-fig. 14, c). 



Ante-clypeus. — Anterior 

 margin almost straight, sides 

 converging anteriorly. 



Post-clypeus. — Distinct 

 from the forehead, convex in 

 both front and behind. An- 

 terior margin with a few hairs 

 directed anteriorly. 



Mandibles. — Right man- 

 dible 5 -toothed : 1st tooth 

 acute ; 2nd very small ; 3rd 

 same as 1st ; 4th large with 



long hind edge ; 5th flat with edge finely serrate. — (Text-fig. 14, d). 

 Left mandible also has 5 teeth : the first three acute, almost of 

 equal size ; 4th a little larger, with tip directed posteriorly ; 5th 

 large, pointed above and finely serrate on basal edge.- — (Text-fig. 

 14, e). 



Text-fig. 14. Leucotermes (Beticul'dermes) 

 speratus. Imago, a, Head ; b, Antenna ; c, 

 Labmm ; d, Eight mandible ; e, Left mandible ; 

 f, Pronotum; g, Fore wing; h, Hind wing, 

 (a, fx20; b-ex33; g, hx6.5). 



