XI. D. 6 Oshima: Termites from the Philippines 353 



between antennal fossse; from the fontanelle runs a shallow 

 groove, reaching to apex of labrum, slightly widening anteriorly ; 

 clypeus grooved along the median line, boundary between apical 

 and basal portions indistinct ; labrum tongue-shaped, longer than 

 broad, tip bilobed and anteriorly provided with a cluster of short 

 hairs, reaching beyond the middle of mandible ; mandibles stout, 

 with strongly incurved tip, the left provided with two teeth, the 

 right with one tooth ; antennae 16- jointed, 2d joint shorter than 

 3d, 4th joint nearly half as long as 3d; pronotum flat, anterior 

 border convex, posterior border weakly emarginate at middle; 

 mesonotum as broad as pronotum; metanotum broader and 

 shorter than the former. 



Hm. 



Length of body 4,50 



Length of head with mandible 2.00 



Length of head without mandible 1.37 



Width of head 1.34 



Width of pronotum 0.75 



Length of pronotum 0.50 



Soldier (the smaller form). — Head yellow; mandibles light 

 brown; abdomen pale yellow; antennae and legs straw-colored. 

 Head very sparingly pilose ; abdominal tergites with a series of 

 spiny hairs along the posterior border. 



Head pear-shaped, sides converging anteriorly; fontanelle dis- 

 tinct, directed upward, with a shallow groove running from it 

 to tip of labrum; clypeus tongue-shaped, swollen on both sides 

 of the median groove ; labrum elongate, rectangular ; tip bilobed, 

 reaching beyond the tip of mandible, its outer border densely pro- 

 vided with minute hairs; mandibles slender, saber-shaped, with 

 incurved tip, the left provided with two teeth, the right with 

 one tooth ; antennae 15-jointed, 2d joint nearly as long as 4th and 

 longer than 3d, 3d joint the shortest and narrowest; pronotum 

 minute, anterior border convex, posterior border nearly straight ; 

 mesonotum slightly broader than pronotum; metanotum much 

 broader than the former. 



Mm. 



Length of body 3.50 



Length of head with mandible 1.37 



Length of head without mandible 0.81 



Width of head 0.72 



Width of pronotum 0.50 



Length of pronotum 0.31 



Worker. — Head yellowish white ; abdomen whitish. Head and 

 abdominal tergites densely pilose. 



Head quadrate, with rounded posterior border ; clypeus mark- 



