234 - 
NEBRASKA 
The collections nr.de in Nebraska were divided into two lots: 
(l) Those taken in the' extreme eastern part and (2) those in the middle and 
western parts. Nebraska is comprised of the following natural vegetation 
areas: 
1. Tall-grass prairie in eastern portion : 
(a) Bluestem sod association in the extreme east. 
(b) Heedlegrass and slender wheatgrass association just west of (a). 
2. Sand sage-sand' grass area in the middle of the State . Here the soil is 
far too light for safe cultivation and very few collections were made. 
3. Wiregrass association containing an open cover of grama grass, Buffalo 
grass and' wiregrass. 
4. G-rama- buffalo grass as s ociation in the extreme west. 
In all parts of the State there are the common weeds Amb rosia , 
Chenopodium , Am ar an thus , Lactuca, Polygonum , Sal so la , Leptilon , C- rindelia . 
« 
Ti7elve species were collected in the tall-grass area and 33 in the 
short-grass area. Most ,of the collections in the eastern part were made 
along roadsides, in legumes, and in rape. There were 844 specimens collected 
in three habitats with Melanoplus mexicanus by far the most important species. 
In the western part most of the collections were made along roadsides and 
in legumes, and 958 specimens were taken from six habitats. M. f emur- rub rum 
was the dominant species in a tot 1 of all collections. This was due, 
perhaps, to the fact that most of the specimens came from roadsides and 
alfalfa fields. The six most important species and their relative abundance 
are listed for each habitat. 
The worst inf estations in 1935 were limited to the eastern counties 
bordering the Missouri Elver. Here the general population has increased over 
1934. In the western part, where farming is somewhat spotted, infestations 
were light and spotted in 1935. 
