mil jmiGO- 
Environnent not shoi^^m 
Eoads ide 
Percent 
1. 
Melancplus f orrur-ranran — 
1+9 
1. 
2. 
Dissostcira longipennis ~- 
31 
2. 
3. 
k 
3. 
Melanoplus foedns focd-as - 
7 
5. 
Mclanoplus differential is 
3 
6. 
Twelve other species » — — 
10 
Undeternined adults, 
Eanfcd 
Percent 
Schist.ocerca shoshonc — 33 
Schistocorca linoata 17 
One othor specier — 50 
Undeternined adults, 50 
native, sod 
1. 
Encoptolophus sordidus — 
2S 
1. 
20 
2. 
J\geneotettix dcor-iiin 
12 
., 2. 
DisPCsteira longipennis 
20 
3. 
Canpylacantha olivacea - 
— - 11 
3. 
20 
Mel?moplus occidentalis - 
5 
u. 
20 
5. 
Melanoplue foedus f ccdus 
5. 
Trincrotropis pallidipcnnis 
20 
6. 
Twenty-three other specie 
;s — ho 
Undeternined ndultc, u 
1. 
2. 
3. 
U. 
5. 
6. 
Percentage of .£^rand total 
Melanoplus fenur-rubrura 28 
Dissosteira longipennis 19 
Encoptolophus sordidus — 13 
JU^eneotettix deorun 5 
Canphvlacantha olivacea U 
Thirty- two other species 31 
Undetermined adults, h 
ITOETH DAKOTA 
Of the 2h,^Gl specimens collected in North Dakota, about 60 percent were 
Melanoplus r.icxicrnus « Ag:eneotett ix deorua Scudd. wae^ next in numbers and 
Me tat or pardalinus Saucs., Cannula politic ida « and Melanoplus f enur>^ru"brun next in 
order of ah-ondance. The outhroaks in 193S were ccnposed mainly of M, nexicanus , 
which hatched in enornous nunhers in grain stuotlc, idle land, and rangeland 
adjacent to crops. 
