58o 



M. OSHIMA : 



Habitat. — Boeton, Celebes ; collected by Mr. Kanehira on April 

 29, 1913. 



21. Eutermes (Trinervitermes) menadoensis nov. sp. 

 (PI. X., figs. 9-10). 



Imago unknown. 



Soldier (the larger form). — Head reddish brown, abdomen straw- 

 coloured. Head coarsely provided with microscopical hairs, mingled 

 with a few longer spiny hairs ; abdominal tergites moderately pilose, 

 with a series of longer spiny hairs along the posterior border. 



Head broadly oval ; rostrum conical, its anterior surface in the 

 same plane as the anterior surface of head, with a slight swelling 

 behind the junction to head; antennae 13-jointed, 3rd joint twice as 

 long as 2nd, 4th joint as long as 2nd ; mandibles with rudimentary 



apical portion ; pronotum saddle-shaped, anterior border scarcely in- 

 dented in the middle, sides rounded. 



Length of body 4,30 mm. 



Length of head with rostrum 1,68 mm. 



Length of head without rostrum 1 ,00-1,09 mm. 



Width of head 1,09-1,13 mm. 



Width of pronotum 0,53 mm. 



Sold ier (the smaller form). — With all the characters of the larger 

 form but smaller. 



Length of body 2,50-3,20 mm. 



Length of head with rostrum 1,53—1,63 mm. 



Length of head without rostrum 0,97-1,00 mm. 



Width of head 0,97-1,06 mm. 



Width of pronotum 0,50 mm. 



Worker. — Head dark brown ; basal portion of clypeus pale 

 yellow ; sutures of head and abdomen yellowish white. Head spar- 

 ingly pilose ; abdominal tergites provided with short hairs. 



