INSECT PESTS AFFECTING THE CITRUS. 



249 



This species diflers but slightly from A. aurantii, excepting in 

 habits and color. 



Scale of female circular, body pale yellow. Male smaller 

 than female, nearly circular, white, marked with irregular 

 yellow spots. Viviparous. 



This species only attacks the leaves and fruit, seldom the 

 wood. Supposed to have been introduced from Japan in 1872. 



Treatment.— Rosin solution (formula No. 1), and gas treat- 

 ment (formula No. 4). 



Yellow Scale on leaf. 



Ventral view of insect. 



(3) Oleander Scale. 



A small whitish scale infesting the oleander. It attacks 

 oranges and lemons; does not infest the trees to their material 

 injury, although harmful to the fruit. 



Scale of female flat, whitish or light gray, and with exuvia; 

 central or nearly so. Female nearly circular in outline. Scale 

 of male slightly elongated, with larval skin nearly central, 

 snowy white; diameter, .04 inch. Oviparous. 



This species has often been mistaken for the true "red" scale 

 when on lemons, as it assumes a pinkish tint. 



Treatment. — Rosin solution (formula No. 1), and gas treat- 

 ment (formula No. 4); kerosene emulsion has also given 

 satisfactory results. 



