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 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 mor- 

 phology, 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 the 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 sugges- 

 tive 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 

 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 

 republished, have been entered as separate references. Genera estab- 

 lished without included species have been dated from their original 



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