Vlll 
Introduction 
Under the family, subfamily and tribal categories we have attempted 
to include those references which we believe belong in the respective 
categories regardless of the designation given by the author. Thus, a refer¬ 
ence to the tribe Tropiduchini may be included in the family, in the sub¬ 
family or in the tribe, depending on the implication of the author with 
reference to the classification adopted in the present catalogue. All cate¬ 
gories of less than specific value are included under the designation variety. 
In the present number of this series we have departed from our previous 
method of giving latinized names to varieties which in the past have been 
designated by Arabic letters, Greek letters, numbers, or other designations. 
All varieties are catalogued, however, under the first designation regardless 
of its form. Some of these varieties will prove to be valid species with further 
study and then may be given latinized designations. 
Primary homonyms of species have been replaced by nomen nova ; 
secondary homonyms have been restored to their original names if the 
homonym has been relieved by moving one or the other or both species 
to other genera. 
All specific endings have been modified to agree with the suggestions 
made by Blackwelder 1940, Journal of the Washington Academy of Sci¬ 
ences 31:135-140. There are certain disadvantages inherent in this method, 
but it seems to the writer that these limitations are outweighed by the 
advantages of this system. We are confronted by so many coined words 
that can have no sex that it seems better to use this system and disregard 
apparent violations of Latin and Greek grammar. Thus the Greek word 
Tettix, although masculine in origin, is treated in its various combinations 
as feminine because they end in x. 
In a detailed catalogue such as this it is practically impossible to elimi¬ 
nate all errors. The author will appreciate it very much if his attention is 
directed to all such mistakes. Also it would seem to the author that changes 
in the nomenclature adopted in this catalogue should not be made in 
the future without a full explanation. 
All literature available to the writer before September 1, 1953 has been 
included in this catalogue. 
Z. P. Metcalf 
Raleigh , North Carolina 
December 1953 
