14 
Annual Reports of Academy of 
valuable and important material. Reports have been published 
in the Academy’s Proceedings upon the collections secured in 
1905, 1907, 1908, 1911 and 1913, while special and critical papers 
on certain groups, utilizing material secured other years, have also 
been published. A number of extensive papers, preliminary to 
to the final work, are also in course of preparation or projected. 
In addition to the collections made by Hebard and Rehn, others 
totalling many thousands of specimens from important regions in 
the United States have been secured from thoroughly responsible 
collectors, and in this way a representation of close to two hundred 
thousand pinned and labelled specimens of North American 
Orthoptera has been made available for study. The detailed and 
exact examination of such a collection requires years, and it also 
involves an almost incredible amount of painstaking labor. In 
consequence tangible scientific results of the work are but slowly 
becoming evident. 
The areas selected for the field work of 1921 were sections of 
northern New Mexico, the “Panhandle” and Staked Plains region 
of Texas, Oklahoma and eastern New Mexico, and southwestern 
Colorado. Much work had been done by us in previous years in 
Texas, but no locality in the “ Panhandle” had been examined, while 
we wished very greatly to compare the Orthoptera of the Staked 
Plains with those of the more typical Great Plains to the northward. 
Northeastern New Mexico was the original locality of certain 
species described nearly fifty years ago, and these to-day are among 
the forms concerning which we have but little information. In 
addition, in the last mentioned region we wished to secure infor- 
mation on the passage from a true desert fauna to a campestrian 
or plains assemblage. Southwestern Colorado is a region which 
has had but a limited amount of entomological study. The rel- 
ative detachment of its high mountains, and the penetration of the 
region by a pronounced desert element of Painted Desert origin, 
made its examination hold more than usual interest. 
Perhaps to most people grassy plains would be considered ideal 
localities for grasshoppers, and with very good reason, but many 
forms, and these in consequence often the least known and most 
local species, are limited to high mountain meadows, the grassy 
glades of the C anadian Zone forests and the natural gardens of 
the Hudsonian Zone, or even the bare rocks of the peaks above the 
