OETHOPTEEA AC E1DIDAE TOMONOTUS SULPHUEEDS. 873 



STENOBOTHEUS COLOEADUS, Thos. 



Stenobothrus coloradus, THOS., Syn. Acrid., 82. 



Stenobothrus bicolor, THOS., 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. 



OEDIPODINI. 



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

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

 coryplms, Acrolopliitus, Pediosccrtetis, Chrysocraon, Stenobothrus, and Gomplw- 



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 Tryxalmi. 



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

 Still 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 

 Arpliia for the reception of T. sulphur eus (CE. sulplmred) and congeneric spe- 

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



in the collection. 



TOMONOTUS SULPHUEEUS, Fabr. 



OryUvs sulplmrcus, FABR., Syst. Ent., ii, 59. 



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



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



Locusta sulpkurea, HARK., Sep., 177, pi. 1, f. 6. 



(Edipoda sulplmrea, BURM., Handb. Ent., ii, 643. 



Tomonotus sulphureus, SAUSS., Eev. et Mag. Zool., xiii, 1861, 321. 



Arphia sulphvrea, STAL, Eecensio, 119. 



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



