136 



65. Acridinm alntacenm Harr. Labette Co. (Newlon). 



The specimens of this species in the present collection vary slightly from 

 the typical eastern form in the presence of a pretty well defined dorsal 

 stripe. This, however, is a characteristic mark belonging to the genus, and 

 is present to a greater or less degree in all the species with which I am ac- 

 quainted. 



66. Acridium obseurum Burm. McPherson Co. (Rundstrom) ; Bar- 

 ber Co. (Cragin). 



67. Schistocerca americana Drury. Labette Co. (Newlon) 



This large and beautiful insect is very closely related to the Egyptian lo- 

 cust, Schistocerca peregrina, that often appears as a plague; and it too, 

 frequently becomes quite numerous at various points in the south, when it 

 also shows a tendency to migrate and does injury to vegetation. In Yuca- 

 tan and the neighboring portions of Central America and Mexico, as well 

 as portions of South America and the West India Islands, either thie or a 

 closely allied species does much injury to crops, and at times becomes a 

 plague, 



68. Pezotettix aeutipennis Scudd. McPherson Co. (Rundstrom); La- 

 bette Co. (Newlon); Topeka and Barber Co. (Cragin). 



69. Pezotettix laKinus Scudd. Garden City (Cragin). 



Mr. Scudder described the species from specimens taken at Lakin, Kas , 

 on Sept. 1; and at Pueblo. Colorado. It, was also collected by H. K. Mor- 

 rison in some part of Colorado east of the mountains at an elevation of 

 5,500 feet above sea level. Aside from these references, I know of no 

 other record of its occurrence. It must therefore be rather limited in its 

 distribution, and if the matter were carefully investigated, I think it would 

 be found partial to some special food-plant that occurs in tt.is limited area 

 only. 



70. Pezotettix album Dodge. Topeka (Cragin). 



This species, as the name indicates, is white, or whitish green, in imita- 

 tion of the plant upon which it feeds (the common Cudweed, or White Sage 

 of our meadows). I have never found this locust upon any other plant, 

 and have met with it wherever I have found the plant. There are speci- 

 mens in my collection and that of the Department of Agriculture at Wash- 

 ington, D. C., from Wyoming, Montana, Dakota and Minnesota, and I am 

 also aware of its occurrence in Manitoba. Here in Nebraska it is one of 

 our commonest species when one knows where to look for it. 



71. Pezotettix Scndderi Uhler. Labette Co. (Newlon). 



The collection contains a single specimen which I refer to this species 

 with some doubt, as it ;ippears to vary somewhat from typical specimens 

 taken in the vicinity of Washington, D. C. 



72. Pezotettix tinieolor Thos. Topeka (Mrs. Cragin). 



Among the material collected at Topeka I find a single female which evi- 

 dently belongs to this species. I have always thought that unicolor is but 

 a variety of P. Scudderi ; but, perhaps, if a male specimen of the former 

 could be examined, the two would prove to be distinct. 



73. Pezotettix iiebraseensis Thos. Topeka (Cragin). 



The collection contains a specimen of this species which differs so much 



