208 THE -CANADIAN ENTOMOLOGIST. 



coming on. A large proportion of these early females must die before 

 the leaves of the Pawpaw first show themselves. In this plant the flowers 

 precede the leaves, and these larvse do not eat the flower, but eggs are 

 sometimes found on the unopened flower buds and even on the stems, 

 several days before the bursting of the leaf buds. 



In 1880, 9th April, I recorded that no good examples of Walshii were 

 to be had, all being worn and broken. But same year, on 20th April, I 

 took a pair of Walshii in copulation, the % just out of chrysalis, the 

 wings expanded, but still littip — not wholly dried — the ^ old and broken. 

 Next day I took 3 pairs of same form in copulation, and in each case the 

 female was fresh, while the male was worn and broken.* 



Now in that year the first Walshii bad been seen early in March. On 

 ist day of April I took a ^ ; on 3rd April I recorded that I saw several 

 females about the blossoms of the wild plum and that all were worn. 

 Plainly one division of this generation, in the % , was passing away early 

 in April, while 20th April many fresh females were coming from chrysalis. 

 I took all these pairs in one clump of bushes inside my fence, and it is to 

 be presumed that if plenty there, multitudes of Walshii were coming from 

 chrysalis throughout this region on those days. The weather had sud- 

 denly changed from cold and blustering to fine, and the belated chry- 

 salids were giving butterflies. 



The period of Telamotiides in these same years has been from 29th 

 April to 9th June. In 1871, 9th June, I recorded that I confined 2 % 

 Telamonides ; on loth had got no eggs, and concluded from their wasted 

 appearance that they had previously exhausted their stock. That same 

 year, both on 24th and 28th May, I had taken females of Telamonides 

 while ovipositing. On 1 2th May, 1872, I recorded that I shut up a % 

 Telamonides and got eggs ; on 30th May, that I shut up 2 %; and add that 

 many of this form were to be seen, but all were worn. Telatnonides 



* I have again and again noticed in many species of butterflies, where a pair have 

 been taken in copulation, that the male will in most cases show signs of considerable 

 age, while the female is evidently either just from chrysalis or quite recently. Boisduval, 

 Spec. Gen., i, p. 28, says: ".In some instances two or three days elapse between chry- 

 salis and pairing, but only when the sexes cannot come together sooner." But of the 

 hibernators the same author says of the Vanessida:, all which in temperate regions at 

 least hibernate in the imago : "Their pairing does not take place till seven or eight 

 months after the emergence of the insect." Of my own experience I know nothing as 

 to this, 



