ORTHOPTERA— ACRIDIDAE— CAMNULA TRICARINATA. 875 



pale bifasciate behind the middle. Posterior tibiae fuscous, with a pale 

 annulation near the base." 



This is evidently the ash-brown variety common in Nebraska and Da- 

 kota, which has the fuscous dashes on the posterior lobe of the pronotum 

 and the elytra sprinkled with fuscous dots. It is intermediate between the 

 dark or black variety and that with the pale-colored pronotum. 



Dr. Brunner de Wattenwyl remarks, in a letter to me, that he considers 

 T. tenebrosus as but a variety of sulphured, and that these and T. xmdhopterus 

 belong to the genus Pachytylus. 



These are the first specimens I have seen from the west side of the 

 Wahsatch range. Its range is now known to extend from the western 

 border of Minnesota to the southeast border of Nevada, and from Northern 

 Wyoming to New Mexico; and I am of the opinion it will be found as far 

 south as Mexico. The sharp crackling note of the male and bright-red 

 wings of this species, which are so plain during flight, easily distinguish 

 this species from any other in the West with which I am acquainted. 



CAMNULA, Stal. 



This is a new genus established by Stal for the reception of the follow- 

 ing species from Vancouver's Island. 



CAMNULA TRICARINATA, Stal. 



Gamnula triearinata, Stal, Recensio, 120. 



I give the following from the "Recensio", as the species is North 

 American. 



" Pale reddish-yellow; the front on each side of the base to the tempora 

 or between the tempora and antennae and a stripe on the cheeks behind 

 the eyes black. Elytra next the base reddish-brown ; costal area paler, 

 spotted with fuscous; apical portion subhyaline, fuscous-veined; and obso- 

 letely nebulous. Wings hyaline; veins dusky. Posterior femora obliquely 

 fusco-bifasciate; apex fuscous; posterior tibiae pale; spines, except at the 

 base, black. 



"35 .—Length, 19-25 millimeters. 



" Similar to Tragocepliala sordida." 



