IJo. 5 ] Miscellaveous Notes. 45 



of ovipofition and writes that egg's laid on the 1 0th January hatched 

 out on the •22nd and 23rd of the same month, while others laid on the 

 ]5th and 16th hatched between the 26th and 38th, the temperature at 

 the time ranging from 74° F. to TS"* F. 



A number of live beetles furnished by Mr. Cleghora have since 

 been shat up in a bottle of cheroots which had previously been sterilized 

 by baking(^). The insects were received on the 17th January 1894 and 

 several of them almost immediately made their way into the cheroots 

 between the layers of tobacco at the ends. Their dead bodies were found 

 lying about three or four days later^ so the life of the insect in this 

 stage must be short. The conclusions to be deduced from the above, 

 when taken in conjunction with what has previously been ascer- 

 tained, are as follows. — The eggs of the cheroot borer are liable in 

 Calcutta to be laid in made cheroots at such different seasons of the 

 year as August and January. Oviposition therefore may be expected to 

 go ou all the year round. In the cold season in Calcutta the eggs are 

 able, under favourable circumstances, to hatch in less than a fortnight, 

 and as warmth and moisture usually accelerate development amongst 

 insects the period of incubation is likely to be even shorter in the rainy 



Q) These cheroots were an old set which have been for more than two years in the 

 Entomology room. They were baked for twelve consecutive hours on 16th and again on the 

 I7th June 1891, the water oven on both occasions being kept nt a uniform temperature of 

 about 180° P. They have since been kept in a bottle in the Entomology room corked in 

 such a manner as to admit air without leaving space for the beetles to entai', Thev have 

 been periodically damped with water so as to create the conditions most favourable to the 

 development of the insect, and as no signs of attack have appeared after an interval of 

 two years and seven months, it may be taken as certain that they have been efficiently 

 sterilized. 



