INTRODUCTION 



A catalogue of animals should serve practically all fields of 

 biology. It therefore should be as complete a listing of all the 

 records of families, subfamilies, tribes, genera, species, and varie- 

 ties as it is possible for the author to assemble. The nature of the 

 reference is of the greatest importance. A student of zoogeography 

 should be able to find a complete list of the regions inhabited by 

 the various species. The student of ecology should be able to find 

 references to all that is known about the life history, food plants, 

 and other pertinent data. The student of economic entomology 

 should be able to check the histories of those species that are 

 suspected of being injurious to plants. The plant disease specialist 

 should be able to check the current nomenclature of the species 

 that are disease vectors, or are suspected of being disease vectors. 

 Those research workers studying morphology, physiology, or 

 genetics should be able to trace developments in the field of their 

 special interest. And finally, the student of taxonomy should be 

 relieved of the burden of searching for past recordings, and the 

 journals which publish taxonomic papers should be relieved of 

 publishing past records and duplicating synonymy that is already 

 well known. Thus, it would be necessary to record only synonymy 

 that has been developed since publication of the catalogue. 



In this, as in other catalogues of the present series, the family 

 is divided into genera, which are arranged in as nearly a phyloge- 

 netic order as our present knowledge will permit. The species are 

 arranged under the genera in alphabetic sequence. 



The notes that follow the references are generally self-explana- 

 tory, 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 always. The notation 

 "[comparative note]" is used to designate those references, often 

 of the greatest taxonomic significance, in which two generic, speci- 

 fic, 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. Where 

 the writer knows that reprints have been issued with different 

 pagination, this is indicated in parentheses 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. Authentic editions that have been 

 republished are cited as separate references. Genera established 



III 



