A SELECTED BIBLIOGRAPHY 

 OF THE COCCOIDEA 



By Harold Morrison and Alice V. Renk, Entomology Research 

 Division, Agricultural Research Service 



This annotated bibliography of the Coccoidea, or scale insects, 

 has been prepared as a reference base to be used in further treat- 

 ment, primarily in catalog form, of the information that has been 

 published on the classification of the group. No general bibliog- 

 raphy covering coccid literature has been published since 1868, and 

 the last comprehensive coccid catalog appeared more than fifty 

 years ago. 



These insects have attracted attention practically from the be- 

 ginning of recorded biology because of their significance both as 

 forms useful to man and as serious plant pests. As a result, many 

 papers and notes about them have been published all over the world 

 in scientific, technical, and agricultural literature. From this mass 

 of material, comprising thousands of titles, an attempt has been 

 made to select those papers that deal significantly with the recogni- 

 tion and classification of coccids and with their nomenclature. In- 

 cluded also are the few papers that have been published in the 

 fields of anatomy, cytology, histology, noneconomic experimental 

 physiology, biology as such, zoogeography, including regional dis- 

 tributional and host-plant lists, and those on preparation and study 

 techniques and on coccid symbionts. 



With occasional exceptions in each category, the following 

 classes of references have been excluded : Utilitarian aspects of the 

 Coccoidea, as lac, cochineal, etc., and the use of coccids in weed 

 control; plant quarantine relations of coccids, such as laws or 

 regulations mentioning them, or lists of coccids taken at ports of 

 entry; all relations of coccids with their parasites and predators; 

 what may be termed the economic biology of the coccids, including 

 their control by insecticidal and related means; numerous re- 

 stricted or casual notes on distribution, economic importance or 

 control of one or of several coccids, including notes of the sort 

 found in insect pest survey reports; and general zoological and 

 entomological text and reference books. 



