( Iv ) 



not particularly difficult of approach, whereas they were 

 extremely difficult to catch on Bugalla where bee-eaters and fly- 

 catchers abound. I noticed the same thing with Aterica 

 galene [Brown], which, on both Damba and Bugalla, I had 

 always found extraordinarily difficult to approach. On 

 Sanga it allowed itself to be caught quite easily. This is very 

 nice, isn't it ? I only hope it was not just imagination on my 

 part ; but I know I had noticed it on one or two occasions at 

 least before I had thoroughly realised that it was correlated with 

 absence of birds ! 



" Sanga and other islands near, were also very interesting 

 for the abundance of the great greenish-pink Salamis, which I 

 had never seen in abundance before, and it really was a lovely 

 sight. 



" Fiske has had the luck to see a M. poultoni apparently 

 ovipositing on Sanga island, at a time when they were numer- 

 ous. It alighted to perform the act at the very tip of a dead 

 dry branchlet of a certain tree. These dry branches are often 

 hollowed out by ants for their nests, so that it certainly looks 

 as if the larva were ant-ophilous (I forget the correct term !). 

 You may remember that I suggested the explanation of my 

 catching the butterfly in my house at Bugalla was either that 

 it had been introduced in an early stage, on the material 

 used for house-building, or that it passed its larval life possibly 

 in Belenogaster nests. Fiske's observation makes the former 

 quite likely." 



Mr. Bacot commented on the great interest of Prof. Poulton's 

 communication regarding a species of wasp " fanning " to 

 cool its larvae during a period of great heat, in view of Black- 

 lock's observation, " Annals of Tropical Medicine and Para- 

 sitology," Vol. iv, No. 4, Dec. 12, that on exposure to 45° C. = 

 113° F. larvae of Cimex lectularius died within a few minutes 

 and adults within an hour. An experiment which he had 

 made showed that the larvae of this species were quite 

 active after an hour's exposure to 44° C, but died within 

 a few minutes at the higher temperature. Heat had been 

 used by friends of his to kill Lepidoptera in the absence of 

 the usual poisons. The insects were quite relaxed after 

 death. 



