The Tea insects of India. 41 



he easy enough to keep them in cheek with kei'osine emulsion or other 

 treatment when only a few bushes are attacked, the case becomes very 

 different when large areas have been allowed to become affected. 



The hydrocyanic gas treatment, described on page 65 of this report, 

 is especially applicable to this species. 



Aspidiotus flavescens. Green— ( = ^. thea, Maskell). This 

 insect was originally described by Green in the pages of the Ceylon In- 

 dependent. It has since been reported both from Assam and the Kangra 

 Valley. According to Green's observations it attacks young plants of 

 from one to two years' growth, and often injures them to such an extent 

 as to make it necessary to replace them with fresh plants. 



The figure, which is after Maskell, shows a piece of tea twig, natural 

 size, covered with female scales, which are yellowish in colour and con- 

 spicuous. To the right is an enormously enlarged diagram of the newly- 

 hatched larva to show its legs and antennae, also the long coiled 

 proboscis which it eventually inserts into the tissues of the plant. 



The insect is likely to be very similar to the preceding in its develop- 

 ment, but its precise life-history has yet to be traced. 



Aspidiotus transparens, Green. This insect was originally 

 discovered upon tea bushes in Ceylon by Mr. E. K. Green. A few 

 isolated scales of what is thought to be the same species have since 

 been found upon leaves forwarded to the Indian Museum in January 

 1894, from a tea garden in Jalpaiguri. Neither in Ceylon nor in India, 

 however, has the insect yet been reported as occasioning any appreciable 

 injury. 



As seen upon the tea leaf, the scales appear as flattened semi-crans- 

 parent, yellowish discs, from one to two millimetres in diameter. 



The life-history of the insect has yet to be traced through the 

 various stages of development. 



L6canium COffese, Nietner. This insect, which is usually accom- 

 panied by a black fungus which grows upon its secretion, was described 



