18 
EXTRACTS FROM THE PROCEEDINGS 
OF THE 
ENTOMOLOGICAL SOCIETY OF LONDON 
(Junr Ist—DEcEMBER 7TH, 1904). 
June Ist, 1904. 
The PRESIDENT communicated a paper by Mr. G. F. Leigh 
entitled “‘Synepigonic series of Papilio cenea (1902-3) and of 
Hypolimnas misippus (1904), together with observations on 
the life-history of the former,” and exhibited specimens to 
illustrate the same. 
Mr. Epwarp Saunpers, F.R.S., F.L.S., communicated a 
paper on ‘‘ Hymenoptera Aculeata from Majorca (1901) and 
Spain (1901-2).” 
Major Nevint—E Manpers, R.A.M.C., F.Z.8., in his paper 
entitled ‘Some Breeding Experiments on Catopsilia pyranthe, 
and Notes on the Migration of Butterflies in Ceylon,” 
began by observing that although the different forms of C. 
pyranthe in Ceylon certainly bore some relation to the seasons, 
they were all liable to occur all the year round. With the 
assistance of Mr. Wickwar he had ascertained that of sixty 
specimens captured during a migratory flight that took place 
in the hot, dry weather of February 1903, seventy-five per 
cent. were males, and sixty-four per cent. of the whole number 
were of the form more lightly spotted on the under-side ; only 
four specimens, all females, bearing heavy markings in the 
same situation. 
Several larvee were collected at Colombo, nearly all in the 
same week, and were subjected to varying conditions of 
temperature and moisture. These conditions proved to be 
very destructive, only fifteen to twenty specimens coming to 
maturity out of quite two hundred larve. Most of the 
resulting emergences were represented in a photograph which 
was exhibited. 
Dealing next with the question of migratory flights, Major 
