PLATE LVII. 



Thamnotettix subfuscula. (Page 81.) 



Fig. 1. — Imago. The strength of the sutural 

 nervures assists in spreading the rather vohiminous 

 wings of this genus. 



Fig. 1 a. — Frons and face of the same insect. 



Thamnotettix variegata. (Page 80.) 



Fig. 2. — The imago. The upper part of the pygofer, 

 with its oval opening, may be seen as viewed from the 

 back. 



Fig. 2 a. — The pygofer more magnified, showing 

 the small caudal style. 



Thamnotettix plebeja. (Page 80.) 



Fig. 3. — The imago, with its obscurely blotched 

 elytra and emarginate post-scutellum. 



Fig. 3 a. — The same insect with its closed wings. 

 Fig. 3 b. — Face and frons of the same. 



