JAN 16 1900 



BULLETIN 



OF THE 



Illinois Qtate I aboratory 



NATURAL HISTORY. 



Urbana, Illinois. 



VOLUME V. 



ARTICLE VII.— FIRST SUPPLEMENT TO THE CHECK-LIST 

 OF THE COCCI DyE. 



BY T. D. A. COCKERELL. 



Illinois State Laboratory of Natural History, 



TRIJANA, ILLINOIS. 



January, 1899. 



