ORTHOPTERA—ACR1DIDAE— TOMONOTUS SULPHUREUS. 873 



STENOBOTHRUS COLORADDS, Thos. 



Stenobothrus coloradus, Thos., Syn. Acrid., 82. 



Stenobothrus bicolor, Tnos., U. S. Geol. Surv. Terr., 1871, 465. 



A single specimen of this species is contained in the collection, and is 

 the first I have seen from the west side of the mountains, showing its range 

 to be much greater than I had supposed. 



OEDIPODIM. 



This group, as heretofore stated, I am disposed to limit by removing 

 from it the following genera, and transferring them to Tryxalini, viz : — Oxy- 

 coryphas, Acrolophitus, Pedioscertetis, Chrysocraon, Stenobothrus, and Gompho- 

 cerus. 



As might have been expected, it is better represented than any other 

 group, as the barren plains and dry mountain regions of the West appear to 

 be peculiarly adapted to these orthopteral forms. 



TRAGOCEPHALA. 



Modifying the group to which this belongs, as above stated, and retain- 

 ing the arrangement of the groups as given in my Synopsis, this genus 

 will, so far as North American genera are concerned, form the connecting 

 link with Tryxalini. 



(E. sordida, Burm., and (E. costalis, Scud., have been transferred by 



Stal to this genus, a change which I think is justifiable and in which I 



concur. 



TOMONOTUS, Sauss, (ARPHIA, Stal). 



As before stated, Stal has wholly ignored Tomonotus, and established 

 Arphia for the reception of T. sulphureus (CE. sulphured) and congeneric spe- 

 cies. Both the species which Stal admits into his new genus are represented 



in the collection. 



TOMONOTUS SULPHUREUS, Fabr. 



Oryllus sulphureus, Fabr., S.vst. Ent., ii, 59. 



(Locusta) sulphureus, Gmel., Linn. Syst. Nat., i, 2079. 



Acridium sulphureum, Oliv., Encyc. Method., vi, 227. 



Locusta snip} urea, Harr., Rep., 177, pi. 1, f. 6. 



Q^dipoda sulphured, Burm., Handb. But., ii, C43. 



Tomonotus sulphureus, Sauss., Rev. et Mag. Zool., xiii, 1861, 321. 



Arphia sulphvrea, Stal, Recensio, 119. 



The two or three specimens of this species found in the collection are 



