Number 115 ' July i, 1922 



OCCASIONAL PAPERS OF THE MUSEUM OF 

 ZOOLOGY 



UNIVERSITY OF MICHIGAN 



Ann Arbor, Michigan Published by the University 



ON SOME HEiMIPTKRA FROM NORTH DAKOTA^ 



By Roland F. Hussey 



The present status of our knowledge concerning the distri- 

 bution of the North American Hemiptera is very far from 

 satisfactory. The \vork which has been done is sufficient to 

 give us only a general idea of the distribution of many of 

 the species, and there are many serious gaps which can be 

 filled only by careful studies on the fauna of the neglected 

 regions. This fauna will not necessarily be identical with 

 that of the past, however. The hand of man produces changes 

 in the character of a region: the flora and the insect fauna 

 so intimately related to it are altered. A splendid opportunity 

 for investigating the primitive fauna of the western United 

 States was lost wdien the biological reconnaissance work of 

 the Geological and Geographical Survey w^as discontinued: 

 verv few regions have received any extensive study since that 

 time. 



1 Contribvition froin the Entomological Laboratory of the Bussey 

 Institution, Harvard University, No. 203. 



