INSECTS INFESTING THE OB APE. 177 



Fig. 154. — Cottony Grape Scale — color of the Hcales, reddish- 

 brown ; of the cotton}' masses, white. 



Fig. 155. — Cottony Maple Scale (Piiln'naria hinumerlbilis, 

 syn. Lecanium acericola, L. mnrliirfe, L. ace n'rorf Iris) — colors, 

 brown and white. 



This species is closely allied to the Lcranium acericola (Figs. 

 154 and 155), which infests the maple, and has been found in 

 several parts of this State. It infests the foliage and branches 

 of the grapevine. 



NATURAL HISTORY. 



The female is oval in form, and measures about two lines in 

 length ; color, dark-brown ; near the posterior end are ridges 

 or carinse, and the lines separating them are darker than the 

 other parts ; anal indentation similar to L. he-'<perichim or soft 

 orange scale. The eggs are white when first laid, but change 

 to a yellowish tinge before hatching ; oval in form, and about 

 one ninetieth of an inch in length. 



In one of the cottony-like masses attached to a female of 

 this species, I have found nearly three hundred eggs. Larva — 

 color, yellowish-white ; form, ovoid ; length, one ninetieth of 

 an inch. Similar in appearance to the larva of tlie soft orange 

 scale, except in color. 



Remedies. — When the vine is dormant, use Nos. 14, 12, or 

 13, after scraping off the loose bark and burning it. In Sum- 

 mer use No. 4, or No. 3 if No. 4 cannot be had. 



CHAPTER CXVII. 



The Grape Scale. 



{Aspi(Ji<)tiii< acce. — Comstock. ) 



Order. Hemiptera ; ^ t:, ., ^, 



o 1 1 XT 1^ amilv, CocciD.E. 



Sub-order, Homopteka ;^ 



[A small circular scale, found on the trunk of the vine and 

 wood left from growth of the previous year.] 



I have only had one specimen of this species sent me, which 



