Introduction 
Vll 
of the character of the data contained. Where the writer knows that re¬ 
prints have been issued with different pagination, this is indicated in 
parenthesis following the page numbers of the original. In a few cases, 
where the matter has been reprinted under a different title with different 
pagination, separate references are given. Where authentic editions have 
been published these have been indicated by separate references. Genera 
established without included species have been dated from their original 
description, with their type fixation dated at the time of the first inclusion 
of species. Original spellings have been retained in all cases, except obvious 
typographical errors. Typographical errors are indicated by placing “[sic]” 
after the misspelled name. 
The determination of obvious typographical errors is not always easy. 
These errors range all the way from clearly apparent transpositions of 
letters, to misspelled names of individuals, geographical names, and many 
others of like character. However, so many generic names have been formed 
by the transposition and substitution of letters that one is often at a loss 
to know which names are misspelled and which are not. For example, 
Neokolla and Keonolla, or Alebra, Elebra, and Eualebra. Thus one might 
assume that Ribaut’s genus Speudotettix was an obvious misspelling for 
Pseudotettix , if he did not search through Greek dictionaries until he dis¬ 
covered that the Greek word airevdco should be transliterated Speudo , 
and Speudotettix is a perfectly valid name for a genus. 
All variations in spelling save those which refer to endings only, are 
appropriately cross-referred. The species have also been listed under 
every known generic combination so that it is possible to find any species 
without recourse to the index, which will be published at the completion 
of the Fascicle, together with the full bibliography. 
The writer takes no pride in the authorship of nomen nova. He uses them 
only when he thinks they are necessary. No new names are proposed for 
species or genera described by living authors without first giving the original 
author an opportunity to correct primary or secondary homonyms. 
A catalogue is not a revision of a group and the location of the genera 
and species in the present catalogue is merely an attempt to reflect what is 
believed to be the general consensus of the best authorities at the present 
time. Doubtful genera and species have been included to call them to the 
attention of subsequent revisers. 
An attempt has been made throughout this catalogue to interpret all 
references in the light of the period in which they were published. This is 
not always easy and leads perhaps to erroneous conclusions at times, but 
it is certainly much sounder from the standpoint of nomenclature than 
the tendency to evaluate references from previous decades in the light of 
present day practices and procedures. 
