THE CANADIAN ENTOMOLOGIST. 113 



THE STENOPELMATIN.^. OF THE PACIFIC COAST. 



BY SAMUEL H. SCUDDER, CAMBRIDGE, MASS. 



A greater variety of generic types will be found among the Stenopel- 

 matinae of the Pacific Coast of the United States than in any other 

 district of equivalent area in our country. I have therefore thought it 

 well to make a list of them in connection with the description of a few 

 new forms from that region. We owe our knowledge of the Orthoptera 

 of that district mainly to the collections of Messrs. Henry Edwards, 

 Behrens, Crotch, and latterly Morse. 



Stenopelmatini. 



In my Guide to the . . . N. A. Orthoptera (1897) I carelessly 

 overlooked the genus Cyphoderris Uhler, which belongs to the Stenopel- 

 matini, but to a different group of genera from that to which Stenopel- 

 matus belongs. The two groups may be distinguished by the following 

 characters : 



Fastigium of vertex confused with the front of the head, not produced 

 between the antennae ; pronotum broader in front than behind, the 

 front margin sinuate, with an intramarginal sulcus ; fore coxae unarmed ; 



fore tibiae with no foramina Ste?iopelmati. 



Fastigium of vertex separate from the front, produced more or less 

 between the antennae ; pronotum not broader in front than behind, the 

 front margin straight or convex, with no intramarginal sulcus ; fore 

 coxae armed with a spine ; fore tibiae furnished with foramina on both 

 faces or at least on the inner face A?iostostomata. 



Ste7iopelniati. 

 Represented in the United States only by the genus Stenopelmatus, 

 nearly all the species occurring in our country being found on, and 

 most of them confined to, the Pacific Coast. 



Stenopelmatus Burm. 



Four species of this genus were credited to the United States, and 

 all to the Pacific Coast, in Brunner's monograph of the Stenopelmatinae 

 (1888), and he did not recognize the species described by Haldeman in 

 1852 as fuscus, by Thomas in 1872 as fasciatus, or by Scudder in 1876 

 as oculatus, all from the region to the east of the Sierra Nevadas. The 

 first of these it is impossible to determine, but types of the other two are 

 before me. The species found in the United States and Canada may be 

 separated by the following table ; 



