6 
General Catalogue of the Hemiptera 
The notes which follow the references are generally self explanatory, but 
three points may be mentioned here. Such notations as “[described]/’ 
“[notes],” “[key],” and the like are intended to be suggestive rather than 
precise or exclusive. The notation “[error]” means not accepted in this 
catalogue. Usually the latest published synonymy is accepted, but not al¬ 
ways. The other notation “[comparative note]” is used to designate those 
references, often of the greatest taxonomic significance, in which two gen¬ 
eric, specific or other groups are compared. All references have been 
checked against the original save those marked with an asterisk (*), which 
have been accepted from reliable sources. Every effort has been made to 
have the references full and complete and to give an indication of the char¬ 
acter of the data contained. Where the writer knows that reprints have 
been issued with different pagination, this is indicated in parentheses follow¬ 
ing 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 in¬ 
cluded 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 mis¬ 
spelled name. All typographical errors, save those which refer to endings 
only, are appropriately cross-referred. The species have also been listed 
under every known 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. In the meantime persons 
interested in full bibliography may consult the author’s Bibliography of the 
Homoptera (1945). 
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 pres¬ 
ent day practices and procedures. 
Under the family and subfamily categories we have attempted to include 
those references which we believe belong in the respective categories re¬ 
gardless of the designation given by the author. Thus, a reference to the sub¬ 
family Achilinae may be included in the family Achilidae or in the sub- 
