j^ Indian Museum Notes. [Vol. IV. 



to the Indian Museum specimens of mango [Mangifera indica) 

 fruit affected by an insect from the district of Satara. He wrote :— 



" A parcel I am sending to-day to your address contains six mangoes grown in 

 Wai (Satara District). They all come from one and the same tree. The stone 

 contains a peculiar insect, probably a weevil. The pulp is never seen to contain 

 any such insect. The points of interest are : — (i) that although there are several 

 other mango trees close by, the tree, from which the mangoes I send you are 

 obtained, is the only one of which the fruit is affected from year to year ; (2) that 

 possibly the eggs of the weevil are carried with the pollen to the ovary, and it is 

 there that the mature insect develops as ovary develops into the drupaceous fruit. 

 The mango takes about six months to mature into a perfect fruit from the first 



appearance of blossom. During this time the insect, it would appear, assumes 



its perfect form, living, after it assumes its perfect form, on the substance of the 



Cotyledons of the seed." 



The insect proved to be identical with Cryptorhynchus 



mangifera^ Fabr., the common mango weevil of Bengal and Sylhet. 



Accounts ot it may be found in Indian Museum Notes^ Vol. I, 



No. I, pp. 45—46, pl. IV, fig. I. 



IV.— FOREST PESTS, etc. 



I Gallfly {Cynipid). — The Director, Imperial Forest School, 

 Dehra Dun, forwarded to the Indian Museum in July 1895, specimens 

 of an insect said to attack teak trees in the Malghat Forest of the 

 EUichpur Division. The specimens consisted of dead chrysalids of 

 a minute Hymenopterous insect belonging to the family Cynipidas 

 (Gall flies), the material being insufficient for identification. 



The following note has been furnished by the Pandurang Narayan, 

 Forest Ranger : — 



*' Some teak trees were observed to present a knotty appearance just below the 

 growing node of the leading shoots and branches in compartment No. 3 of the 

 Chourakund Circle. To this attention was drawn by the Conservator of Forests, 

 Hyderabad Assigned Districts, and observations were ordered to be made. These 

 knotty portions when cut transversely showed that in the middle small eggs were 

 laid for the future insect. These eggs have been found to be laid in four groups 

 along the four-sided stem of the teak, and each group to contain from 12 to 24 

 eggs- 



" These eggs were hatched during the beginning of July and the insect in its 

 larva stage bored its way out. Some of the borings possess the coat cast out by 

 the insect while undergoing the metamorphosis." 



a Pentatomid bug, — In December 1895 the same officer sent to 



