rjsrsEcrs infesting the willow. 243 



are yellow ; anal segment slightly tufted ; fore-wings, brick 

 red, with black veins ; hind-wings clear, transparent, the 

 inner edge bordered with a narrow brown band, yellow at the 

 base ; legs yellowish red. Pupa — color, dark amber. Larva — 

 length, one inch ; color, pale yellowish ; second segment, yel- 

 lowish ; head yellowish-red ; mouth part dark brown ; about 

 six fine yellowish hairs on each segment, growing on as many 

 wart-like spots ; spiracles small, round, and of a light-brown 

 color ; true legs light-brown ; pro-legs represented by eight 

 rings of hooks. This species is found in localities one hun- 

 dred and fifty miles apart. This species also infest the locust 

 tree. 



Note. — Since writing the above the perfect insect has emerged 

 from the pupa of the above mentioned larva. It proved to be 

 a specimen of the Sciapteron rohinise of Edwards. (July 13.) 



Remedy. — Use No. 37. 



CHAPTER CLV. 



The Willow Scale. (Cal.) 

 {As'pidiotus conve.cas. — Comstock.) 



Order, Hemiptera ; } ^J^ •■, n 



c, 1 J XT [ i* amilv, CoccTD^. 



Sub-order, Homoptera ; ) • ' 



[A species of scale insect infesting willows.] 



This species resembles the greed}' scale ''.-1. rnpax') in 

 appearance, and it is only liy scientists that a distinction can 

 be made. I think it beyond (piestion that- this species will 

 spread on cultivated trees, especially the apple and pear. 



Near the city of Los Angeles, the orchards of McKinlay 

 Brothers and Mr. Kieser were protected by over two miles of 

 wind breaks made l^y planting willows, which formed an excel- 

 lent protection from the winds and supplied a large quantity 

 of firewood annually. Two years ago it was noticed that the 

 fruit — apples and pears — was seriously infested by the ^L con- 

 ccxus. It was found that the willows were also infested l)y the 

 same species. I advised the digging out of the willows, Avhich 



