EAST INDIAN TERMITES. 



583 



Genus Micvocerotermes YVasmann. 



23. Microcerotermes los-banosensis now sp. 



(Pl. X, fig. 6). 



Imago unknown. 



Soldier. — Head yellow ; mandibles brown ; abdomen white. Head 

 very sparingly pilose ; abdominal tergites thinly provided with 

 microscopical hairs. 



Head quadrangular, elongated, with rounded corners, slightly 

 vaulted dorsally, truncated in front ; no fontanelle ; posterior border 

 of clypeus arcuate, anterior border straight ; labrum short and broad, 

 tongue-shaped ; mandibles slender, sabre-shaped, with strongly in- 

 curved piercing tip, masticating edge minutely serrated; antenna: 13- 

 jointed, ist joint very stout, 3rd joint shorter and narrower than 2nd, 

 4th joint as long as 2nd ; pronotum saddle-shaped, anterior and 



posterior border rounded. 



Length of body 5,50 mm. 



Length of head with mandible 2,56-2,66 mm. 



Length of head without mandible 1,66-1,72 mm. 



Width of head 1,03 mm. 



Width of pronotum 0,34 mm. 



Length of pronotum 0,66 mm. 



Worker. — Head pale yellow ; abdomen white. Head moderately 

 pilose ; abdominal tergites deusely provided with minute hairs. 



Head broadly oval, slightly longer than broad ; sutures of head 

 indistinct, whitish ; basal portion of clypeus half as long as broad, 

 anterior border straight, posterior border convex, slightly swollen, 

 with a shallow median groove; antenna.' 13-jointed, 3rd joint minute, 

 half as long as 2nd, 4th joint langer than 3rd ; pronotum saddle- 

 shaped, anterior border slightly emarginate at middle. 



