GENUS ARGFNNI8. 151 



shaped club, ridged on the under side : palpi with 

 the middle joint very long, the basal and terminal 

 joints short, the latter very slender, acicular : wings 

 very ample, slightly scolloped, the hinder pair gene- 

 rally extending beyond the abdomen : anterior legs 

 imperfect xn both sexes ; the four posterior leg's with 

 claws ana two appendages at the base. I*he chry- 

 salis is suspended bv the tail. 



