133 



XANTHIPPUS. Antennae graceful in the female ; in the male somewhat 

 flattened, with the apex curved outward and pointed, quite long. 



LEPRUS. Antennae slender ; posterior femora remarkably broad ; pos- 

 terior tibiae caerulean. 



PYCNODICTFA. Antennae as in Hippiscus; lateral lobes of the prono- 

 tuin narrow, parallel above as in Hadrotettix. 



The last named genus he does not include in the North American fauna, 

 but I add it here to receive the large and beautiful (Edipoda Wheeleri of 

 Thomas, which occurs in the mountain regions of Colorado Prof. Thomas 

 himself states (Wheeler Geog. and Geol. Surv. W. 100 Merid.) that this 

 locust agrees with the description of the genus Pycnodictya, and that he 

 has a notion to place it there at once, "otherwise a new genus will neces- 

 sarily have to be formed for its reception." Saussure includes (Edipoda 

 neglecta Thos. in his genus Xanthippus, which I think is an error on his 

 part, since the locust in question does not agree with the characters upon 

 which he founds his genus. It is distinct from all other North American 

 species with which I am acquainted, save one from California, in its gen- 

 eral appearance, and in my opinion should be referred to a new genus, and 

 be placed near Arphia. 



50. Dissosteira Carolina L. Topeka (Cragin) ; Labette Co. (Newlon) ; 

 McPherson Co. (Rundstrom). 



This is the common species of our roadsides, with yellow-bordered black 

 wings. It is one of the most widely distributed species in America, and 

 occurs throughout all of the United States, Canada, British Columbia, 

 Central America, and the West India Islands. It also occurs as far north- 

 ward along the Pacific ooast as southern Alaska. 



51. Dissosteira long-ipennis Thos. Barber Co. (Cragin). 



This locust, which resembles no other species in this country, differs in 

 its habits from its congener, D. Carolina, which rather prefers to 

 hang around cities, farm-yards, and dusty roadsides, to going off into the 

 interior, away from the habitations and works of man. It is met with only 

 in waste places where the soil is clayey and stony, and when disturbed takes 

 rather long flights, being very difficult to capture. (Edipoda nebrascensis 

 Bruner, is a synonym, and was described from a stray specimen found at 

 West Point, Nebraska, whither it must have drifted with the winds from 

 Kansas with Melanoplus spretus, which was flying at that time. 



52. S|iiai;ii: moii baitoatiim Scudd. Barber Co. (Cragin); Labette 

 Co. (Newlon). 



Dr. Newlon's specimen was labeled (Edipoda xanthoptera, an error on 

 his part, as that insect belongs to the genus Aiphia as now limited. Dr. 

 Saussure now includes all the species of this genus in Dissosteira as a sub- 

 genus. This I hardly think proper, when he has gone to the trouble of 

 subdividing some of the other genera in which, according to my notion, 

 there is less difference among the members than there is here. He also 

 removes Scudder's Trini<rotropis picta to this genus under the subgenus 

 Scirtetica on the same footing with (Edipoda marmorata Uhler, a second 

 species of the same group. 



53. Spharag-emoii aequale Say. Barber Co. (Cragin). 



These specimens are rather more ferruginous in color than the species 



