2 GENERAL CATALOGUE OF THE HOMOPTERA 



Genera established without included species have been dated from 

 their original description, with their type fixation dated at the earliest 

 time the action can logically be interpreted to have occurred. Original 

 spellings have been retained in all cases, except obvious typographical 

 errors. Typographical errors are indicated by placing "[sic]" after 

 the misspelled name. This is not for the purpose of calling attention 

 to the mistakes authors have made, but to make certain that students 

 following the catalogue have a clear understanding of what is implied. 



The determination of typographical errors is not always easy. 

 These errors range from clearly apparent transpositions of letters 

 to misspelled names of individuals, geographical locations, et cetera. 

 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, Elabra, and Eualehra. 



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. 



The writer takes no pride in the authorship of nomina 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. 



In this series we have departed from our previous practice of giving 

 latinized names to varieties that 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 may prove to be 

 valid species with further study and then may be given latinized 

 designations. 



Primary homonyms of species have been replaced by nomina 



