134 



Insect Pests. 



The mature viviparous females into which the lice turn, have 

 le yellowish-green abdomen with darker green lines and sides, 



FIG. 10.'). — APPLE APHIDES. 

 1. xiphix fitfhit. ■>. A. xiiiiii. 3. A. imrni. All ovipai'oiis females. 

 {Partbi after Sanderson.) 



cornicles long and dark, sometinies a faint yellow spot at the base 

 of each cornicle and an indistinct band connecting them. 



These lice and apterous viviparous females curl up the leaves, 

 and feed not only upon them, but also upon the young and tender 

 shoots. The majority are found, not only covered with a grey meal, 

 but also witli numerous oil globules interspersed between them. ■ 



In July and August, many of the lice turn to pupte. The pupa3 

 are greenish-yellow, some having darker 

 green stripes, and the wing buds and the 

 cornicles yellow with dark apices, and, 

 like the apterous females and lice, are 

 covered with a mealy powder. 



From these pupiB winged viviparous 

 females appear in July and August. A 

 i'ew may be seen some years in June. 



Tlie winged female has a deep greenish- 

 brown head, the thorax browmish-black, pro- 

 thorax paler ; the abdomen deep green with 

 three black spots on each side. The antenna- 

 yellowish-brown with dusky joints, and 

 dark cornicles. The legs pale green with 

 dusky tarsi, and tips of tibi;e and knees. 

 These winged females ai'c vivijiar<jus, and fly or are carried liy 

 the wind from tree to tree and orchard to orchard. These set up 



I/-'. K. 

 FIG. 107.— Ajiliisfiorbi. OVIl'Aliou 

 FEMALE. YOUNG STAGE. 



