PROCEEDINGS OF THE THIRD ENTOMOLOGICAL MEETING 197 



[Balaninus sp. 



In 1917 a large number of jamiin fruits which had a pitted or distorted Mr. Khare. 

 appearance were examined. It was thought first of all that each of the 

 pits might have been a passage through which the egg was deposited. 

 The pulp of the fruit was carefully examined, but no trace of any insect 

 could be got. When the entire pulp was scraped off some brownish scars 

 were noticed on the skin which was peeled off and the scars were noticed 

 deep in the seed. On cutting open the seed, a whitish grub was found 

 either in the centre of the seed or in the deep scars. Usually one grub 

 is found in each seed, but sometimes more than one may be got. The 

 pits on the fruits must have been made by the adult bv thrusting their 

 proboscis to feed on, which ultimately never heal up. The grubs remain 

 inside, eat up, make the seed hollow and fill up with excreta, etc. These 

 do not come out of themselves by biting a way through, but wait till 

 the fruits drop on the ground. The fruits drop in large numbers on the 

 ground and rot. The upper skin and pulp are all removed and the seeds 

 are exposed. The seeds of Jmmm fruits germinate very quickly and in 

 such process the two cotyledons spHt up and liberate the encased grub. 

 The grubs later on get into the moist soil, prepare several small earthen 

 chambers, many of which are found lumped up together. If these 

 chambers are periodically opened, one sees the grub lying inside. This 

 shows that aestivation of the grub takes place in the soil, till the following 

 April or May when they pupate and emerge as weevils, but in some cases 

 weevils emerged in August, i.e., within three months. This weevil is 

 of the same shape and size as the one described in the report of the Imperial 

 Entomologist of 1917-18, p. 102, but in colour it is uniformly brown and 

 does not possess the whitish lines on the elytra. Mr. Naoroji kindly 

 identified the specimens and put them under the genus Balaninus.'] 



Eugnamftus marginatus, Pasc. 



S. I. I., pp. 329-331, ff. 18G-187 ; Ann. Kept. 1917-18, p. 99, 

 t. 16, f. 1 ; Proc. Second Entl. Meeting, p. 219. 



Our records include the following localities and foodplants : — Dehra Mr. Fletchtr. 

 Dun, adults defoliating Butea frondosa ; Poona, mango leaves ; Nagpur, 

 young mango leaves ; Pusa, mango leaves, the young leaves being com- 

 pletely eaten at times ; Sabour, mango leaves ; Maymyo, tender mango 

 leaves. 



The life-history has already been described and figured. 



At Dehra Dun it defoliates Butea frondosa. Mr. Beeson. 



At Dacca it does slight damage by cutting the soft leaves of mango. Mr. P. C. Sen. 



