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NEW YORK STATE MUSEUM 



Greene county. The appearance of the insect about six weeks from 

 birth is well shown in plate 2, figure 3. Then there are yellowish exuviae 

 and a dark grayish scale about i mm or -g-g- inch long. Later the con- 

 spicuous larger, white portion of the scale is excreted, and the eggs may 



Fi|:. 2 Chionaspis furf ura: Adult male above; bfoot; 7i tip of antenna of same ; 

 c larva; d antenna; e leg of same; /pupa; g adult female removed from scale— all enlarged, 

 b, d, e, h much more than the others. (A.fter Howard. U. S. dep't agric. Vearbook. 1894) 



be]]found the latter part of August or in early September to the number 

 of 30-75 under one scale, where they remain dormant till the following 

 spring. It is stated that two and possibly three generations may develop 

 in one season in the southern states. 



Food plants. This scale insect is specially abundant in New York 

 on apple, pear, Japan quince and blackcap raspberry bushes. Dr How- 

 ard found it so numerous on mountain ash in the Catskill mountains, 

 that hardly a twig or branch was uninfested. It has also been recorded 

 on the following: crab apple, peach, quince, black cherry, choke cherry, 

 wild red cherry, shad bush, cherry currant, wild flowering currant, black 

 walnut and black alder (C 1 e t h r a alni folia). The identity of the 

 insect on all these food plants has not been established beyond question. 

 I have since learned that Mr King has succeeded in bringing the list up 

 to 23 food plants ; so this species can be classed as a general feeder. 



