Aii Annotated List of Generic Names of 

 the Scale Insects (Homoptera: Coccoidea) 



Compiled by Harold Morrison, collaborator J- and Emily R. 

 Morrison, biologist, 2 Entomology Research Division, Agricultural 

 Research Service 



INTRODUCTION 



This list of generic names of the Coccoidea, or scale insects, is an 

 outgrowth of a card catalog that has been maintained for many years 

 in the identification nnit of the organization currently known as the 

 Entomology Research Division of the U.S. Department of Agricul- 

 ture. A catalog of names, with associated data, is a prerequisite for 

 taxonomic and other investigations of coccids carried on in the De- 

 partment of Agriculture, and is equally 'valuable to other persons 

 undertaking similar studies on this group of insects. 



The compilation of a list of generic names of coccids seems to us 

 to be especialfy difficult because of the early widespread use of certain 

 coccids in the evolving economic life of man. Inevitably there 

 was a comparable widespread, but inconsistent, reference to these 

 insects and to coccids as a group in early post-Linnaean, scientific 

 literature. Indeed, a review of authors and titles hi the Horn and 

 Schenkling Index Litteraturae Entomologicae, 1928-29, suggests that 

 there may be several hundred early papers, beyond those already 

 found, in coccid literature that could be examined for discussions that 

 might affect coccicl nomenclature. The probings of L. Lindinger bear 

 out this assumption. But such probings seem to us to have produced 

 a very poor return and to have dealt serious blows to name stability, 

 which is a very necessary constituent of current biological science. 

 References to coccids appear in publications of several biological dis- 

 ciplines including taxonomy, economic entomology, insect anatomy 

 and physiology, transmission of diseases, and minutely detailed prob- 

 lems of genetics. Under such circumstances it is imperative that 

 fixity of coccid scientific names be sought, so that reference to any 

 genus has the same significance in any publication, from general 

 zoological or entomological text or reference book to the most re- 



Deceased. 

 Retired. 



