EXPLANATION OF THE PLATES OF OETHOPTERA.* 



Plate I. 



Fig. 1. Anabrus simplex, Halcl. 



2. CEdijJoda tenebrosa, Scudd. 



3. Brachypej)lii8 virescens, Charp. 



4. Caloptenus dlffercntialis, Thos. 



5. Gryllus formosus, Say. 



6. (Edijpoda trifasciata, Say. 



Fig. 7. Acrolophitus hirtipcs, Thos. 



8. Decticus palliddpalpus, Thos. 



9. Locusta faliginosa, Thos. 



10. Gryllus hictuosus, Serv. 



11. Gryllus luduosus, Serv. 



Plate II. 



Fig. 1. Aoi'idimn frontalis, Thos. 



2. Caloptenud occidentalis, Thos. 



3. Cdlopienus viridis, Thos. 



4. Caloptenus Dodgei, (malOj) Thos. 



5. Caloptemis Dodgei, (male.) 



6. Calo2}tenusdifferentialis,vai\a, Thos. 



7. Opomola Uvitfata, Serv. 



8. Opomola Wyomingensis, Thos. 



9. Calopteniis Dodgei, (female,) Thos. 



Fig. 10. 

 11. 

 12. 



13. 

 14. 

 15. 

 16. 

 17. 



Caloptenus TurnbullH, Thos. 

 Epliippitytlia gracilipes, Thos. 

 Phaneroptera Color adensis, Thos., 



(MS.) 

 Pezotettix ohesa, Thos. 

 Pezotettix ohesa. 



Epliippigera tschivavensis, Hald. 

 Locusta occidentalis, Thos. 

 Pterolepis minutus, Thos. 



* These two plates of Orthoptera, are copied by permission of Professor T. Glover, from IX and XI 

 of hia admirable plates of American Orthoptera, and although containing none but western species, 

 have two or three species to which I do not refer. 



