6 
Introduction 
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 cata- 
logue. Usually the latest published synonymy is accepted, but not always. 
The other notation “[comparative note]” is used to designate those refer- 
ences, often of the greatest taxonomic significance, in which two generic, 
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 character of the 
data contained. WTiere the writer knows that reprints have been issued with 
different pagination, this is indicated in parenthesis following the page num- 
bers of the original. In a few cases, where the matter has been reprinted un- 
der 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 re- 
tained in all cases, except obvious typographical errors. Typographical er- 
rors are indicated by placing “[sic]” after the misspelled name. All typo- 
graphical errors, save those which refer to endings only, are appropriately 
cross-referred. The species have also been listed under every known com- 
bination 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. 
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 be- 
lieved 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 atten- 
tion 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. 
Under the family, subfamily and tribal categories we have attempted to 
include those references which we believe belong in the respective cate- 
gories regardless of the designation given by the author. Thus, a reference 
to the tribe Derbini may be included in the family Derbidae, in the sub- 
family Derbinae or in the tribe Derbini, depending on the implication of 
the author with reference to the classification adopted in the present cata- 
