EAST INDIAN TERMITES. 



571 



long as 3rd, 4th joint slightly shorter than 3rd ; pronotum broad, 

 anterior and posterior border distinctly indented in the middle, the 

 former slightly elevated ; meso-and metanotum considerably narrower 

 than pronotum, their lateral margins rounded, posterior borders 

 concave. 



Length of body 8,50 mm. 



Length of head with mandible 4,53 mm. 



Length of head without mandible 2,97 mm. 



Width of head 2,56 mm. 



Width of pronotum 2,03-2,19 mm. 



Length of pronotum 1,09-1,19 mm. 



Soldier (the smaller form). — Head yellow ; abdomen straw-colour. 

 Head smooth ; abdominal tergites moderately pilose, hairs micros- 

 copical. 



Head oval, sides slightly converging anteriorly ; fontanelle minute ; 

 labrum lancet-shaped, elongated, with hyaline tip; antenna; 17- joint- 

 ed, 2nd and 3rd joint as long as 4th ; pronotum slightly narrower 

 than head, anterior and posterior borders weakly indented at middle, 

 the former convex. 



Length of body 6,00 mm. 



3,09-3,19 mm. 

 1,69-1,75 mm. 

 1,47-1,56 mm. 

 1,12-1,22 mm. 

 0,72 mm. 



Length of head with mandible 



Length of head without mandible 



Width of head 



' Width of pronotum 



Length of pronotum 



Worker (the larger form). — Head yellow ; abdomen whitish ; 

 antennae brownish. Head sparingly pilose ; abdominal tergites pro- 

 vided with subequal hairs. 



Head round ; fontanelle whitish, round ; no rudiments of eye ; 

 forehead in front of fontanelle depressed ; basal portion of clypeus 

 shorter than half the width, slightly swollen ; pronotum saddle-shaped ; 

 antennae 18-jointed, 2nd joint as long as 3rd, 4th joint shorter than 3rd. 



