REVISION OF THE JAPANESE TERMITES. 



143 



Worker. 



(Text-fig. 36). 



Colour. — Head pale yellow to yellow. A bilobed mark on the 

 forehead, sutures and the lateral surface of the head white. Inner 

 margin of the mandibles and a spot on each side of the clypeus 

 brown. Antennae and palpi pale yellowish. Colour of the abdomen 

 varies with the intestinal contents. 



Head. — Clothed with short hairs. Almost spherical, slightly 

 rounded on summit and much swollen on the clypeus. Median 

 suture distinct. — (Text-fig. 36, a). 



Antennae. — 14-jointed : 1st joint stout, cylindrical, twice as 

 long as broad ; 2nd smaller, longer than broad ; 4th annulate, shorter 

 and narrower than either of 3rd 

 or 5th ; 5th as long as broad ; the 

 following ones turbinate, becoming 

 larger and more stalked toward 

 the extremity; the last elongate- 

 oval. 



Labrum. • — • Slightly broader 

 than long, broadest in the middle, 

 broadly rounded in front and on 

 lateral corners, and sides shghtly 

 concave behind. Surface convex, 

 with scattered long and short 

 hairs. — (Text-fig. 36, b). 



Post- clypeus. — Much broader 

 than long, rounded on antero- 

 lateral corners and convex behind. Median suture depressed. 



Mandibles. — Almost like those of the winged insect. — (Text- 



Text-fig. 36. Eutermes {Entér- 

 ines) parvonasutus. Worker, a, Head ; 

 b, Labrum. ; c, Right mandible ; d, 

 Left mandible ; e, Pronotum. (a, e 

 x30; b— dx50). 



