EXPLANATION OF PLATES.* 



PLATE 1. 



Fig. 1. — Face of Allygm irroratus Say. 



Fig. 2. — Face of Agallia siccifolia Uhler. 



Fig. 3. — Vertex of same. 



Fig. 4. — Antenna of Oncometopia imdata Fabr. 



Fig. 6. — Thorax of Tettigonia mollipes Say; ventral view. 



Fig. 6. — Legs of Oncometopia iindata. 



Fig. 7. — Female generative organs of Oncometopia nndata; ven- 

 tral view. 



Fig. 8. — The same ; dorsal view. 



Fig. 9. — The same ; lateral view. 



PLATE II. 



Fig. 10. — Head of Oncometopia imdata ; dorsal view. 



Fig. 11. — The same ; lateral view. 



Fig. 12. — The same ; ventral view. 



Fig. 13. — Elytra of (huvmetopia undata. 



Fig. 14. — Wing of same. 



Fig. 15. — Head of Anladzes irrorata Fabr.; lateral view. 



Fig. 16. — The same ; ventral view. 



Fig. 17. — Elytra of Aulacizes irrorata. 



Fig. 18. — Wing of same. 



PLATE HI. 



Fig. 19. — Head and thorax of Tettigonia inollipefi Say (female) ; 



dorsal view. 

 Fig. 20. — Head of Tettigonia inolUpeK (male) ; ventral view. 

 Fig. 21. — The same ; lateral view. 

 Fig. 22. — Elytra of Tdtigonia mollipes. 

 Fig. 23.— Wing of same. 

 Fig. 24. — Head and thorax of Tettigonia hieroglyphica Say ; dorsal 



view. 

 Fig. 25. — Head of same ; lateral view. 

 Fig. 20. — Head of same ; ventral view. 

 Fig. 27. — Elytra of Tettigonia tripunctata Fitch. 



'•These figures are all original camera lucida drawings made by the author. 



