PROCEEDINGS OF THE SECOND ENTOMOLOGICAL MEETING 151 
{Entomological Note 98, Bulletin 59]. As a rule Aleyrodids are minor 
pests but they occur sporadically in large numbers and may do consi- 
derable damage. In such cases they are aften checked by parasites 
and the rate of parasitization may reach a very high percentage ; I 
think we have found as high a proportion as ninety per cent. parasitized 
and under such circumstances the outbreak is checked rapidly and 
nothing more need be done. If, however, as sometimes happens, para- 
sites are absent or present in only quite insufficient numbers, the only 
remedy as a rule is to cut off and burn the affected leaves to prevent 
the damage from spreading. 
We shall be glad to see specimens of any Aleyrodide found on cane 
or other plants, and of their parasites if these are obtained. 
In the Punjab Aleyrodids are sometimes very bad on cane. From Mr. M. M. Lal. 
the affected fields a very small quantity of gur is produced ; the effect 
of the attack is very noticeable on the cane-juice, which is rendered 
more watery. The Aleyrodids are parasitized, but this occurs late in 
the season after nearly all the damage is done. 
Removal ‘of the affected leaves in the early stages of attack is prac- 
tised. One peculiarity about the attack that has been observed is that 
the damage generally commences from the corners of fields. 
Aleyrodids are noticed on cane in Bombay also but Ladybirds and Mr, Jhaveri. 
Chrysopa come to the help of the cultivator. 
In the United Provinces these Aleyrodids occur on sugarcane but Mr. David. 
not as pests. 
In the North-West Frontier Province ratoon and thin varieties of Mr. Robertson- 
sugarcane are generally attacked by Aleyrodids. Brown. 
We will go on to the Scale-insects found on cane. Our list 1s @ very Mr, Fletcher. 
meagre one and here again we have a group of insects which has not 
yet been either collected or studied in India. A little work on Indian 
Coccidee would doubtless double our present knowledge without much 
difficulty. Some of the species on cane are common and doubtless do 
a good deal of damage in the aggregate. 
Ripersia sacchari is described and figured in Entomological Memoirs, 
Vol. II, pp. 128-129, tab. 12, figs. 10-13. This account deals with the form 
since called var. oryz@ by Green, found on rice-plants in Bihar, and it 
occurs on cane in much the same way, in dense colonies under the sheath- 
ing leaves, where it is difficult to get at it. 
Pseudococcus (Dactylopius). sacchari is also found on cane, under the 
sheathing leaves, in much the same way as the last, but it is probably 
less common than Ripersia sacchari. 
Pseudococcus (Dactylopius) saccharifolii has been described at some 
Jength in Entomological Memoirs, Vol. II, pages 23-24, 124-127, tab. 12, 
