320 



SOME SOUTH INDIAN' IN SHiTS. ETC. 



Fig. 410.- Chionaspis biclavis. On the right is seen a piece of Cinchonastem 

 with Scales in situ, natural si e of bark from a 



rea t< in showing two scales greatly enlarged. (After ( i 



Distribution. Xilgiris. 



Lifehistory. — The female scales arc always found on stems or 

 bark of the foodplant, never on leaves; they are extremely incon- 

 spicuous, being covered with the superficial fibres and 1" 

 of the bark on which they rest. Their presence may, however, be 

 detected by the pimply appearance of the bark. 



Foodplants. — Tea, Cinchona. Occasionally on Grevillea and 

 Coffee. 



Status. Not noted as a pest in Southern India, but Green states 

 that it is " perhaps the most serious and widespread of all Coccidae 

 affecting the tea plant in Ceylon," its attacks resulting "in an 

 unhealthy hidebound condition of the main stems and branches." 



Control. -Cutting out of worst affected stems during pruning 

 and scrubbing the remainder with a pad of coir matting moistened 

 with Kerosine Emulsion (Green). 



HEMICHION VSPIS 1 HE/E, Mask. 



Chionaspis thea>, Masked. I.M.X.. II, 6o, t. I, ff. 2 a c; Green, 

 Coci Ceylon, II, p. 113. t. 33; Watt and Mann. Pests of Tea. pp. 



307-309. i- 39- 



Hemichionaspis tliea, Green, Ent. Mem. Dept. Agri , 1ml.. 1. No. 5, 



P- 342. 



Distribution.- Throughout the Tea Distri< ts >>\ Southern India. 



