INDEX OF GENERA. 



Aspidiotus, u, 12, 13, 19, 23, 24, 25, 30 



Chionaspis, 8, n, 12, 13, 15, 16, 17, 19, 22, 



23, 24, 25, 26,30, 31, 34, 35, 



3 6 > 37, 39> 40, 4i 

 Chionaspis, 45, 46, 49, 50, 51, 52, 53,55,56 



Coccus, u, 24, 25 



Diaspis, 24 



Hemichionaspis, 44,45,49, 51, 52,54,55, 



56, 57- 

 Mytilaspis, . . . . 19, 30 



