41 



i 





Novius (Vidalia) Cardinalis, Adult and Larva. 

 Much enlarged. 



Cotton Cushion Scale 

 (Icerya purchasi) 



The Cottony Cushion Scale 



(Icerya purchasi) 



Novius (Vedalia) Cardinalis 



Little need be said of this scale as it is no longer a pest in Cali- 

 fornia, though at one time it appeared to be ruining the citrus in- 

 dustry, the large white covered insects making many groves look 

 as if they had passed through a snow storm, and ho treatment 

 would check it at all. Then the little lady-bird, about one-half the 

 size of a bird shot, was brought from Australia by Chas. Koebele, 

 to whom too much credit can not be given for his persistent advo- 

 cacy of getting a parasite for this scale, which finally resulted so 

 beneficially. These parasites increased astonishingly, and in a few 

 months had the scale under control. They have kept them down 

 to a negligible quantity since then, and we are always glad to 

 see a few, as the Novius (Vidalia) cardinalis will always find them 

 soon and will thus be kept from starving and dying out. 



