500 SOME SOUTH INDIAN INSECTS, ETC. 



SCHIZONEURA LANIGERA, Hausm. 



Af/iis lanigera, Hausmann, Qlig. Mag. [nsekt, I. 440 U802) ; 

 buckton. Aphides. III. 89. t. 105, 106 ; Atkinson, I.M.N., II. 52—58, fig. 



i [1 - 589 — Schizoneura lanigera. 

 To the left is a port: 

 In- the insect I ■ the 1 ighl is seen 

 • eel aatui I ; 11 magnified. (After Marlatt in Grandi.) 



Distribution. Coonoor, Bangalore. 



Lifehistory. The "American Blight," "Woolly Blight," or 

 " Blood Louse " appears in two forms, one of which attacks the 

 trunk and branches of apple-trees, the other the roots. The trunk- 

 living form is usuall) found in crevices (.it the hark or at the base 

 of twigs, etc., springing from the trunk and is covered with ,1 white 

 downy covering. The root-living form has also white cottony fila- 

 ments. In both cases, the seat of attack is indicated In numerous 

 gall-like excrescences. The females may be winged 01 wingless 

 and can reproduce agamogenetically. Males do not seem to have 

 been observed in India. 



Foodplants. Apple. 



Status. Ma> be a serious pes) oi apple-orchards. 



Control. For trunk-living form, spra) ing and scrubbing of stems 

 and affected branches with Crude Oil Kmulsion or other contact 



