52 



B. If\ Kuiikci 



and slightly acute ; ventral mar<j;ins of abdominal segments provided 

 with rather stout spine about in the middle. 



Eyes compound, reniform, composed of many ocelli, deeply pig- 

 mented in alcoholic specimens. 



First antennae longer than second, with flagellum rather shorter 

 than peduncle, second segment of ]:)eduncle slightly longer than 

 first and more slender ; third segment about ^'2 as long as second ; 

 flagellum made up of man}^ segments ; accessory flagellum 2-jointed, 



Fig. 11*. Elasuiopus rapax A. Costa. 



shorter than first 2 joints of principal flagellum. Second antennae 

 with gland cone long and slender ; third joint as broad as long ; 

 fourth and fifth joints subequal ; flagellum rather short, made up of 

 about a dozen segments. 



Upper lip rounded sharply with fine cilia on anterior margin 

 and ventral surface. Mandibles with 3-jointed palp, principal cutting 

 edge denticulated, and large molar tubercle ; first joint of palp short, 

 second rather strong with several setae on inner margin, third 

 segment blade-like, slender proximally, broadening abruptly, outer 

 margin convex, inner edge straight and furnished with setae apically ; 

 secondary cutting edge also denticulated ; spine row with 7 spines. 



