PLATE LXTX. 



Typhlocyba jucunda. (Page 131.) 



Fig. 1. — Imago. The anal nervures are strongly 

 developed. 



Fig. 1 a. — Front view of the head, with upper part 

 of the legs. 



Fig. 1 h. — Under side of the female, showing the 

 ciliated saw-valves. 



Fig. 1 c, — Hind legs of the same insect. 



Fig. Id. — End of the fore-tarsus, with its blunt 

 claws. 



Typhlocyba quercus. (Page 131.) 



Fig. 2. — Imago. The wing- veins are invisible. 

 Fig. 2 a. — Variety of the same insect. 



Typhlocyba geometrica. (Page 132.) 



Fig. 3. — Imago, with closed wings. 



Fig. 8 a. — Elytron and wing of the same. The faint 

 annulus on the costa may be traced in several other 

 species. 



