4 CONTENTS 



PAGE 



V. Description of genera and species 35 



1. Pseudococcus . . ' ,. .35 



2. Phenacoccus 55 



3. Puto 61 



4. Heterococcus 65 



5. Trionymus 66 



6. Ripersiella 73 



7. Crypto riper sia 73 



8. Erium . . . 75 



9. Antonina 76 



E. References cited 78 



