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 varieties 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 aU 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 nomencla- 

 ture 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 development 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 

 which 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 phylogenetic 

 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-explanatory, 

 but three points may be mentioned here. Such notations as "[de- 

 scribed]," "[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, specific, or other groups are com- 

 pared. 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 pagination is indicated in paren- 

 theses following the page numbers of the original. In a few cases, 



