PLATE XXXI. 



Pediopsis distinctus. (Page 101.) 



Fig. 1. — The imago. 



Fig. 1 a. — Represents the profile of the frons, and 

 the insertion of the antennae in Pediopsis scutcllatus. 



Fig. 15. — Represents the more flattened frons of 

 P. virescens. 



Idiocerus fulgidus. (Page 107.) 



Fig. 2. — The imago with closed wings. 



Fig. 2 a. — The clavate antenna of the male. 



Fig. 2 ]). — The frons and clypeus of the same. 



Fig. 2 c. — The apex of the abdomen of the male, 

 seen from above, with its plumose penis. 



Fig. 2 d. — The same parts seen in profile, with one 

 of the cornua, much magnified. 



Idiocerus populi. (Page 108.) 

 Fig. 3. — The imago. 



Idiocerus adustus. (Page 109.) 



Fig. 4. — The imago, with closed elytra. 



Fig. 4 a. — Front view of the male frons, and the 

 front legs. 



Fig. 45. — Elytron, showing the costal teeth. 

 Several of the nervures cannot be traced in the 

 chitin. 



