ment of all genera that belong with the coccid complex. Publications 

 by Balachowsky, Borchsenius, Ferris, and Morrison {see Bibliogra- 

 phies) should be examined for studies in this area. It is our opinion 

 that no classification system has evolved to a point permitting its rigid 

 acceptance as a framework on which to hang all of the currently known 

 coccid genera, 



All names in the list have been cross-checked in Neave, Nomenclator 

 Zoologicus, I-V, 1939-50, and various earlier compilations of scientific 

 names and bibliographies have been freely consulted. 



In presenting these coccid generic names, the original place of publi- 

 cation for each is given as a convenience. Further citations, in the 

 discussion which may occur under a name, are presented in the abbrevi- 

 ated form of author name, year of publication, and page citation, and 

 each may be expanded to a full literature citation by reference to the 

 Selected Bibliographies (U.S. Dept. Agr. Misc. Pubs. 734, 1957, and 

 987, 1965) which have been issued as a prelude to this work. The clos- 

 ing date of the list is December 31, 1963. 



Painful amounts of time and effort have gone into the compilation 

 of this list, and it is our hope that sufficient evidence is offered to 

 satisfy other coccid workers that the information presented can be 

 accepted as a foundation on which to build an evolving and continu- 

 ally improving system of classification for the Coccoidea. 



Although the actual compilation of this generic list of Coccoidea has 

 taken place recently, much of the initial information contained in it 

 accumulated over a period of many years and was gathered by many 

 persons. C. L. Marlatt started the catalog in the early 20th century as 

 a continuation of the Fernald Catalogue. J.G. Sanders and E.R. Sas- 

 scer worked on it in its early years, and published several lists of generic 

 and specific coccid names. Ida Weckerly was engaged in the endeavor 

 for nearly 20 years. 



The development of the catalog was under the direction of Harold 

 Morrison for approximately 40 years. Dr. and Mrs. Morrison devoted 

 their efforts for some months to listing, checking, and annotating 

 generic names, and to recording pertinent information. The manu- 

 script was in rough draft at the time of Dr. Morrison's death on 

 March 11, 1963. Mrs. Morrison continued the work, and added names 

 that appeared later in the year. Louise M. Eussell reviewed the manu- 

 script, and actively participated in the preparation of the final draft, 



We wish to acknowledge the assistance of several persons and orga- 

 nizations in the preparation of this list. Formal note should be made 

 of the helpfulness of A Catalogue of the Coccidae of the World, by 

 Mrs. Maria E. Fernald, published in 1903. The large amount of infor- 

 mation brought together in that volume was the starting point for 

 much of our review work on the older coccoid genera, even though our 



