Figure 80. 



maxinarv''nnw"'^.'"; ''-'V' ^' '"^"dible; 3, antenna; 4, mouth brush; 5, mentum; 6 

 ^ a . nt.^p'^t.ll f ^' ^l';!"'"^'' segmens and siphon ; 8, s.phonal spines showing variation; 

 9, a single scale from 8th segment: all enlarged. (Original.) 



