6- 



5>,T, THE COCCIDAK 



TABLES FOR THE IDENTIFICATION OF THE SUBFAMILIES AND SOME OF 



THE MORE IMPORTANT GENERA AND SPECIES TOGETHER WITH 



DISCUSSIONS OF THEIR ANATOMY AND LIFE HISTORY 



BY 





ALEX. D. MACGILLIVRAY 



/ toill speak what I believe to-day, 



even if it contradicts everything that 



I said yesterday. Gladstone. 



SCARAB COMPANY 



URBANA, ILLINOIS 



1921 



