NEW NORTH AMERICAN ACRIDID^E, FOUND NORTH OF THE 

 MEXICAN BOUNDARY. 



BY 



Lawrence Bruner. 

 (With Plate I.) 



During tbe early part of 1884 Dr. C. V. Riley and the writer began 

 the preparation of a conjoint Monograph of North American Acrididse. 

 For various reasons the publication of this work has been delayed, and, 

 at the suggestion of Dr. Riley, and as a result of that conjoint work, tbe 

 following new North American Acrididse are herewith characterized in 

 advance, in order that others who may be desirous of studying the same 

 family of insects can have the benefit of the undescribed material in 

 this group contained in the collections of the National Museum. This 

 material has been steadily increasing ever since the publication of Dr. 

 Thomas' Synopsis of North American Acrididse by the United States 

 Geological Survey. At present this collection contains typical speci- 

 mens of nearly all of the described forms, besides many that are new to 

 the country north of the Mexican frontier. Dr. Riley will probably 

 soon publish descriptions of the new species belonging to the genera 

 Melanoplus, Pezotettix, Hesperotettix and allies, to which he has paid 

 especial attention on account of their economic relations to agriculture. 

 The writer wishes here to acknowledge his aid in different ways while 

 engaged on the work, and for having the accompanying illustrations 

 prepared. 



In the preparation of the present paper no special efforts have been 

 made towards a natural classification of the species represented by the 

 material herein described. The conocephalids have, however, been 

 placed together — an arrangement which seems more natural than that; 

 sometimes adopted heretofore by writers treating of the family of 

 locusts. The division into subfamilies is that followed by the more 

 recent European specialists. 



Proceedings National Museum, Vol. XII— No. 7G4. 



47 



