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 vari- 

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

 the reference is of the greatest importance. A student of zoo- 

 geography 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 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 nota- 

 tions 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 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 com- 

 plete, and to indicate 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 



