PLATE II. 



Centrotus cornutus. (Page 6.) 



Fig. 1. — Dorsal aspect, showing (a) the horn of the 

 pronotum projecting beyond the tail, and the lateral 

 horns of the pronotum. 



Fig. 2. — Side view of the same insect, showing the 

 prolongation (h) of the scutellum, and the horn (a) of 

 the pronotum. 



Fig. 3. — Front view, showing the pronotum (p), the 

 frons (/), the clypeus (c), the rostrum (d), and the fore 



leg (.7). 



Fig. 4. — A fore leg, with two tarsal jomts. 



Fig. 6. — A hind leg, with three tarsal joints. 



Fig. 6. — The end of the tarsus, with its blunt claws. 



Fig. 7. — The antenna, with its seta tapering to a 

 mere bristle. 



Centrotus genista. (Page 7.) 



Fig. 8. — Profile view of the insect, showing the 

 shorter prolongation of the pronotum, and the sub- 

 horizontal position of the head and eyes. 



Fig. 9. — Dorsal view of the same, showing the form 

 of the pronotum. 



Figs. 10 and 11. — Enlarged side, and under-views 

 of the tarsus of the hind leg. 



