INSECTS INJURIOUS TO STONE FRUITS 



659 



give birth to living young. These young instead of being pink 

 like their mothers are pale yellowish-green throughout their 

 lives, and usually there is a median and two lateral dark green 

 stripes passing over the abdomen. Very few of this brood attain 



FIG. 507. The green peach Aphis (Myzus persicce Sulz.): 5, adult stem 

 mother; 6, young of stem mother; 7, apterous viviparous female of 

 second generation; 8, spring migrant; 9, fall migrant; 10, egg-laying 

 female; 11, eggs all much enlarged. (After Gillette and Taylor.) 



wings. The third generation become very largely winged and 

 - begin leaving the trees upon which they were born about the mid- 

 dle of May in the peach-growing sections of the State (Colorado) . 

 By the middle of June these lice have almost completely left the 



