602 INSECT PESTS OF FARM, GARDEN AND ORCHARD 



The Rosy Apple-aphis * 



This species is larger than the preceding, with a rounder body, 

 and is commonly of a rosy color, though the wingless females 

 vary from a salmon or tan color to slaty gray, purplish or black. 

 It has been injurious only to apple in this country, where it has 

 become widely distributed, but in Europe its native food-plants 

 are various wild species of Sorbus and Cratcegus. The wingless 

 female is about one-tenth inch long, the head, thorax and margin 

 of the abdomen being dark reddish-brown, and covered with a 



FIG. 455. The rosy apple-aphis (Aphis sorbi Kalt.): winged viviparous 

 female greatly enlarged. 



powdery substance which gives it a deep blue color, the middle 

 of the abdomen being lighter yellowish. The antennae and legs 

 are whitish, marked with dusky. The honey-tubes are pale yellow, 

 tipped with black, and are long and tapering. Between the eyes 

 are two sma'l tubercles, and on the middle of the two segments 

 in front of the tail are a pair of similar small tubercles, which 

 are quite characteristic of this species.. When fully developed 

 the female becomes much darker and distended with young, which 



*ApMs~s0r&iKaltenbach. Family Aphididoe. See Sanderson, and Gillette 

 and Taylor (Aphis pyri Boyer), cited above; and W. E. Britton, 9th Report, 

 State Entomologist of Connecticut, p. 343. 



