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 tlie 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 vec- 

 tors or are suspected of being disease vectors. Those research work- 

 ers 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 search- 

 ing 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 the publica- 

 tion 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 sug- 

 gestive 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 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 refer- 

 ences full and complete, and to give an indication of the character 

 of the data contained. Where the writer knows that reprints have 



