REVISION OF THE JAPANESE TERMITES. 



31 



Worker. 

 (Text-fig. 5). 



Colour. — Head dirty white, with a dark brown spot on each 

 side of the çlypeus. Inner margin of the mandibles, spines, claws 

 of legs, brown to dark brown. Labrnm pale yellowish brown. 



Head. — Circular, as long as broad, convex above, sloping 

 down on the forehead. Hairs scanty. — (Text-fig. 5, a). 



Antennae. — Short, 14-1 8 -jointed ; of the specimen with 17 joints : 

 1st joint large, cylindrical ; 2nd shorter, narrow at the middle ; 

 3rd broadest at the tip ; 4th and 5th short, annulate ; 6th and 7th 

 orbiculate ; the remainder turbinate ; the last oval. — (Text-fig. 5, b). 



Eyes. — Oval, almost in contact with the antennal cleft. 



Labrum.— Trapezoidal, a little broader than long. Anterior 

 margin nearly straight, antero -lateral corners broadly rounded, sides 

 slightly converging posteriorly. The surface covered with a few 

 hairs. — (Text-fig. 5, c). 



Mandibles. — Almost similar 

 in form to those of imago, 4- 

 toothed on each side. — (Text- 

 fig. 5, d, e). 



Pronotum. — Broader than 

 the head, more than twice as 

 broad as long. Concave in front, 

 convex on sides, and truncate be- 

 hind, showing a faint concavity 

 in the middle. — (Text-fig. 5, f). 



Mesonotum. — Nearly as 

 broad as the pronotum. Anterior 

 margin concave, posterior margin convex, slightly concave in the 



Text-fig. 5. Gulotermes (Neotermes) 

 koshunensis. Worker 1 , a. Head ; b, An- 

 tenna ; c, Labrum ; d, Right mandible ; 

 e, Left mandible ; f , Pronotum. (a, f x 

 13; b-ex20). 



