19 



I copy this description from Mr. Cooke's book: 



Eggs: Length, one eighty-tifth of an inch; width, one half; color, pinkisli; from seventy 

 to one hundred laid by each female. Larva: color, reddish; length, one seventy-fifth of 

 an inch. Antennae : Seven-jointed, anal seta present. The females have the power of loco- 

 motion for some time. When young, they are of a reddish color, changing to a light 

 brown, finally becoming dark brown when they reach maturity. From the common black 

 scale they are easily distinguished by the absence of the ridge in their back — the shape of 

 the letter H. 



THE BROWN APRICOT SCALE. 



Lecanium Species. 



This species has to my knowledge not been described, and specimens 

 were forwarded some time ago to an eastern gentleman making this group 

 a specialty, but nothing has been heard from him. As it has been spread- 

 ing lately in the prune districts of Santa Clara, I shall attempt to de- 

 scribe it in such a way that it will be recognized. 



In general appearance this lecanium is very similar to the soft orange 

 scale, with which it has been confounded. Its most striking difference is 

 this: The L. Hesperidum is viviparous, that is the young come forth from 

 the adult direct, and eggs are not seen. In this case the eggs are a very 

 conspicuous feature. They are present in immense numbers, and the 

 empty egg cases remain under the scale. They are surrounded with a 

 mealy powder, and this often adheres to the branch, leaving a white mark 

 the shape of the scale. The scale is boat shaped, when reaching maturity 

 somewhat wrinkled; the color is a shiny brown, darker in the center, 

 lighter at the edges. A full large-sized scale has a length of a quarter of 



