VII. SOUTH AMERICAN TETRIGID.E. 



Bv Lawrence Bruner, 

 Professor of Entomology in the University of Nebraska. 



Some time ago the extensive collection of saltatorial Orthoptera made by 

 Mr. H. H. Smith in Brazil and adjoining parts of South America was placed 

 in my hands by Dr. W. J. Holland, the Director of the Carnegie Museum, 

 for study. Among the material thus submitted are many representatives 

 of the family of "grouse-locusts." In fact, the collection contains such a 

 large percentage of the described species of South i\merica and at least 

 a score of new ones, that the writer has decided to make this report a 

 review of the family so far as South American forms are concerned. 



While in nowise a monograph or even synopsis of the group, the paper 

 gives brief synopses of the subfamilies and genera, lists all the species, 

 and in many instances also adds synoptic tables for the separation of the 

 species of the larger genera. Of course all new forms are quite fully 

 characterized. The arrangement of the subfamilies, genera, and species 

 is intended to convey, as far as possible, the author's opinion as to the 

 proper sequence of the various forms. An occasional reference is also 

 made to some feature in connection with the life-history or distribution 

 of certain forms with the hope that it may add something to our general 

 knowledge of these interesting little locusts. 



It might be added that the majority of the representatives of the family 

 are to a great degree either aquatic or semi-aquatic in their habits. Hence 

 they should be sought for at the margins of streams and bodies of water, 

 or in very humid localities, rather than in arid places. A few of them live 

 among the mosses and lichens which grow on trunks of trees and rocks, 

 to which their general color conforms to such an extent as to be strongly 

 protective. 



Table for the Separation of the Subfamilies j\nd Gener.\ of South 

 American Tetrigid.«. 

 A. Frontal costa widely forked, the rami forming a frontal scutellum. 



CLADINOTINiE. 



b. Pronotum very greatly compressed, above wholly foliaceous. 



c. Pronotum viewed in profile subrhombic-angulate, ampliate posteriorly; first 

 and third joints of the posterior tarsi subequal, or the first slightly 

 longer. Phylloletlix Hancock. 



89 



