( clxxvi ) 



sufficient interest you might perhaps put it before the Entomo- 

 logical Society, to be pulled to pieces by more experienced 

 hands." 



Prof. Poulton said that the hypothesis was quite new to 

 him, and that he thought it was important to put it on record 

 as soon as possible, so that Entomologists generally might 

 test it by past experience and future specially directed 

 observation . 



Mr. Bacot said that experiments carried out in West Africa 

 with Stegomyia supported Mr. Williams' theory; Mr. E. E. 

 Green had found that during the whole of his residence in 

 Ceylon he remained equally affected by the bites of mosquitoes, 

 but that in England, though much attacked, he suffered no 

 inconvenience from them. Mr. H. Dollman and the Rev. G. 

 Wheeler gave evidence from personal experience from resi- 

 dence in Central South Africa and Switzerland respectively, 

 supporting the view that partial or even complete immunity 

 was acquired after a time, and Mr. Bacot added evidence 

 that this immunity lasts for many years. Dr. Longstaff 

 and Mr. Bethune-Baker also adduced similar evidence with 

 regard to the stings of bees and wasps. Mr. Malcolm Cameron 

 pointed out that the personal element had also to be con- 

 sidered, insects attacking some people much more readily and 

 persistently than others. 



Bhopalocera from South Central Africa. Mr. H. 

 Dollman exhibited two series of some thirty specimens each 

 of bred Charaxes : they represented two distinct species of 

 the " etheocles " group, the one having the 2 form of manica, 

 Trim, (resembling small .. bohemanni), the other having t lie 

 ? form of phaeus, Hew. (resembling small J bohemanni). 



It was pointed out that there were constant and readily 

 seen differentia in the respective males, and that in the great 

 number of females bred the latter had never departed from 

 the forms exhibited. The phaeus form having been bred in 

 every month of the year, and the manica form, though not so 

 extensively; but throughoul several months (in< isive of the 

 extreme wet and extreme dry periods), it ma\ perhaps be 

 concluded that there is no marked seasonal instability oi 

 either sex of the two species in this locality. The respective 



