NACEBUS. 165 



ochraceous ; lateral margins of the mesonotum somewhat longly 

 pilose ; structural characters as in generic diagnosis. 



Length, J and $, 2 milliin. 



Hob. Calcutta (Ind. Mus.\ 



This species was found in the Calcutta tanks. 



Genus NACEBUS. 

 Nacebus, Dist. A. M. N. H. (8) v, p. 152 (1910). 



Type, N. dux, Dist. 



Distribution. India and Burma. 



Body subelongate ; head about as long as breadth between eyes, 

 the apex broad and subtruncate, the lateral apical angles distinctly 

 subproininent ; eyes inwardly somewhat rounded or roundly trun- 

 cate, not eraarginate, not produced over the anterior margins of 



Fig. 90. Nacebics dux. 



the pronotum ; antennae with the first and second joints stouter 

 than third and fourth joints, first joint about as long as head, 

 second shortest, only a little more than half the length of first, 

 third and fourth subequal in length, each a little shorter than 

 first ; rostrum reaching the intermediate coxae ; pronotum very 

 short, almost appearing only as a broad anterior collar ; mesono- 

 tum three times as long as pronotum, the anterior and posterior 

 margins truncate, the lateral margins a little roundly oblique ; 

 abdomen (excluding anal appendage) about as long as head and 

 pro- and mesonota together, the anal appendage long and slender ; 

 anterior legs moderately stout, the femora twice as long as the 



