TEOCEFDINGS OF THE THIRD ENTOMOLOGICAL MEETING 561 



and even now occasional plants are met with whicli are very heavily 

 infested by the black scale. The infested plant becomes conspicuous, 

 looks sickly and withers away prematurely. Prompt removal of such 

 plants is necessary to secure safety of the other plants. This has also 

 been reported to occur on cotton at Coimbatore in South India. 



In Madras we have four species of Coccids on cotton, but none of Mr. Ramakrishna 

 them is serious. Saissetia nigra attacks isolated plants and every plant ^^* 

 thus attacked is killed. Last year (1918) ten plants in a patch were 

 attacked and parasites were found in all the Coccids. Psevdococnis 

 corymhatus is found not only on cotton but on jak also. On cotton it 

 occurs late, when the plants are left for another picking. (Ecophylla 

 smaragdina is found attending this Coccid. A Pseudococcns also occurs 

 on cotton. Pulvinaria maxima is a bad pest of mm [Melia azadirachta] 

 trees in the South. The nim is a valuable tree with us. Of late years 

 we find P. maxima occurring on cotton also. 



Cerococcus kibisci also occurs at times on cotton in Madras. Mr. Fletcher. 



In Mysore we get Saissetia nigra and Pulvinaria maxima. Mr. Kunhi Kannan 



In Egypt we have a mealy-bug which has only appeared recently. Dr. Gough. 

 It attacks by preference Erythrina, mulberry, Hibiscus and cotton. 

 It has not been identified ; it gives a red colour to alcohol. It also 

 attacks many other plants, but it only seems to go through one or 

 two stages on these and does not attain to maturity on them. I want 

 to get parasites for this mealy-bug. 



Is Oxycarenus bad on cotton in Egypt 1 Mr. Robertson- 



Brown. 

 Oxycarenus* is a very bad pest with us, and there is going to be a Dr. Gough. 

 special investigation regarding it. If it attacks garden hollyhock of 

 the European variety, the leaves curl up and budshedding occurs. Forty 

 per cent, of the flowers fail to mature on account of the sucking of Oxy- 

 carenus. I believe that about eighty per cent, of the seeds of cotton 

 are rendered useless by this insect. 



I would like to know if anyone has any experience of Aj)his gossypii ? 

 We have found it very bad on Cambodia cotton. This ought to be Mr. Ramakrishna 

 grown as an annual plant but it is often grown as a perennial. Ayyar. 



With us it acts in the edges of the fields and along road-sides. Dr. Gough. 



Smooth-leaved and partially smooth-leaved varieties are attacked Mr. Burt, 

 more by this Aphis. It may be only a secondary agent. 



The species referred to is presumably 0. hyaUnipennis. — Editor. 



k2 



