. , ( 93 ) 



cxxxivj 



merit at Oxford, it was found that the hindwings in four out 



of the fourteen showed a very definite tendency towards the 



production of " tails." Furthermore, the hind margin of these 



wings, instead of being everdy rounded, presented, in differing 



degrees in the four specimens, a squarish outline with the 



rudimentary "tail" at the angle. Some of the specimens 



closely resembled the hippocoon figured by Prof. Poulton in 



Trans. Ent. Soc. 1906, pi. XIX, fig. 3, but in one specimen 



at least the undulation of the margin was far more reduced 



except at the "tail," and the appearance was therefore more 



squaredike. Two females only out of all those comprised 



in the five other families showed a similar condition. These 



appeared in family I. Mr. Lamborn hoped to repeat the 



experiment on a larger scale, and carry it out more fully, in 



order to obtain conclusive evidence as to the effects of a 



lowered temperature upon this species. 



Families of Papilio dardantjs, Brown, bued in Natal 



FROM FEMALE PARENTS OP THE TROPHONIUS, WeSTW., FORM, BY 



Miss M. E. Fountaine and Mr. G. F. Leigh. — Prof. Poulton 

 said that, at his desire, Miss Fountaine had kindly prepared 

 the following account of the extremely interesting family 

 reared by her in 1909 — the only Natal family at present 

 known in which cenea is other than the most numerous of all 

 the forms. 



''■ On the 5th of January, 1909, in Stella Bush, near Durban, 

 (Natal) I caught a very old 9 specimen of Papilio dardanus, f. 

 trophonius, which I kept, hoping to obtain ova. On January 

 7th, she laid 28 ova (one of which I am inclined to think must 

 have escaped my notice the day before). And up to January 

 11th a few more were laid every day, till, the number having 

 reached 45, I released the ?, in the 'glades.' On January 

 10th, 1 larva hatched out, on January 11th, 27 larvae, each 



[cxxxv 

 of the remaining 17 hatching on the 4th day after the egg 

 was laid. When the caterpillars were still quite young 1 left 

 Durban and went up country to a place called Dargle (4,400 

 feet) not without some anxiety for my little larvae, which had 

 all made a good start and were doing remarkably well. It 

 was much colder up at Dargle, and it rained almost every day, 



