THE ACRIDIIDAE OF MINNESOTA 
By M. P. Somes 
INTRODUCTION 
The material upon which this paper is based includes, in large 
part, the collections of insects accumulated during the seasons of 1911 
and 1912, while the writer was engaged in economic work against the 
destructive locusts of Minnesota. In addition many facts are included 
which were drawn from a study of the collections of the Division of 
Entomology of the Minnesota Agricultural Experiment Station and 
from collections made by the writer in Iowa and Minnesota at other 
times. 
The aim of this paper has been to place before students inter- 
ested in the Orthoptera the facts which have been gained to date con- 
cerning the most important family of the order, together with field 
notes, life histories, ranges, and generic and specific descriptions and 
keys which may facilitate accurate and definite identifications. In 
every instance a definite Minnesota record for each species has been 
included, if possible. Every effort has been made to furnish data which 
shall apply to the forms found in this State, and the tables and descrip- 
tions have been rewritten and modified to fit them to local conditions 
instead of including details which may apply only in areas widely sep- 
arated from Minnesota. 
No glossary is included since no new terms have been used and 
all here included are fully covered in numerous glossaries and die- 
tionaries readily accessible. 
This bulletin was prepared at the suggestion of Professor F. L. 
Washburn, Chief of the Division of Entomology of the Minnesota 
Agricultural Experiment Station, and to him thanks are due for the 
attention given to the preparation of the illustrations, colored plates, 
and figures in text, all of which are new, and for numerous other cour- 
tesies. Our thanks are also extended to D. Stoner, M. C. Tanquary, 
J. Zetek, C. W. Howard, and others who were associated with us in 
the economic work. Quotations have been taken from some of their 
notes but in every such case full credit has been given. Without such 
helpful codperation in collecting and field observations the data here 
presented must have been much less complete. To Professor L. 
Bruner, of the University of Nebraska, and A. N. Caudell, of the 
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