lis IOWA ACADEMY OF SCIENCES. 



Melanoplus spretus Thos. " Rocky Mountain Locust." was in many parts 

 of the State in the years 1875-8, but none, so far as known, for a number of 

 years past. 



Melanoplus femur-ruhrum De G. Probably our most abundant locust, and 

 one which causes great losses in grass land and clover. 



Melarioplus bivitattus Say. Sometimes quite common and doing no little 

 damage to clover and other crops. 



Melanopjlus differentialis Thos. Often abundant and destructive; confined 

 mostly to grasses and cereals, but gathering in autumn on vegetables, aspar- 

 agus, etc. 



Melanoplus Junius Dodge. Included on authority of Prof. Bruner. 



Melanopthis luridus. On authority of Prof. Bruner. 



Melanoplus anguslipennis Dodge. On authority of Prof. Bruner. 



Melanoplus abditum Dodge. On authority of Prof. Bruner. 



Brachystola magna " Lubber Hopper." This species occurs in the western 

 part of the State, but appears to reach its eastern limit in Crawford county. 



Eippiscus lialdemanni Soudd. A rather common species. 



^ippiscus phcenicopterus Germ. Occasionally plentiful. 



nippiscus haUlemanni Scudd. Another common species. 



Sippiscus pluenieoptei-us Germ. Occasionally plentiful. 



Dissosteira Carolina Linn. " Dust Hopper." A very common species, 

 easily recognized by its dusty color and the black under wings with yellow 

 border. 



Trachyrhachnia cincta. Rather rare. 



Arpliia tenebrosa Scudd. Rare in the central parts of the State, but prob- 

 ably common in the northwest. 



Arphia conspersa. One specimen collected at Ames. Prof. Bruner informs 

 me it is a Texan species, and its capture here unique. 



Sphceragamon cequalis Say. A common species. 



Sph(Rragamon collaris Scudd. 



Tomonotus sulphureus Fab. Quite common. 



Tomonotus carinatus Scudd. Sometimes abundant. 



Encoptolophus sordidus Scudd. Generally common. 



Tragocejyhala viridijasciata DeG. Common. 



Tragocephala infuscata Harr. Common; very similar to the preceding, 

 except in color; both forms appear quite abundant in early spring. 



Stenobothris curtipennis Harr. At times rather common. 



Stenobothris tricarinatus. Not noted as common. 



Stenobothris cequalis Scudd. Probably the most common of the genus and 

 likely to be destructive in grass where it abounds. 



Chrysochraon viridis Scudd. 



Chrysochraon cojisperstwi Harr. 



Mermiria bivittatus Serv. Usually rare. 



Mermiria brachyptera Scudd. One immature specimen. 



Family LocusTiDiK. 



Orchelimum nigripjes. 



Orchelimum vulgare. Quite common. 



Xiphidium fasciatum. Avery abundant species at times, and occurring 

 on grass land and probably feeding in part at least, on gi-asses and clover. 



Xipjhidium nig rupleurum . 



