might in a few instances favour this budding process. In 

 Bombyx mori parthenogenesis has been known to occur several 

 times. 



Telea Polyphemus is the best wild silk woiun of the United 

 States, with a closed cocoon like those of the genus Antliercea, of 

 which it has all the characteristics. The silk of Polyphemus is 

 white, and in quality it fully equals that of A. Pernyi, but the 

 cocoon is generally smaller. It is difficvilt to obtain the pairing 

 of the moths in captivity, and the best thing to do is to place the 

 cages containing the moths in the open air. Polyj^hemus is very 

 polyphagous (from Catalogue Raisonne of A. Wailly.) 



On the 7th March a pair of Callosanda Promethea emerged — 

 eggs were laid on the evening of the 8th. A week after another 

 female emei'ged. They do not seem to pair well in captivity, as 

 the males are extremely lively, and flutter about the cages in 

 their attempts to escape, which seems their only object. This 

 last female laid a number of eggs, which, however, are not 

 fertilized thei'e being no males out at the time. On the 24:th 

 another male emerged, after the other female had died. I hope 

 the other cocoons will hatch together and pair, as it is rather 

 tantalizing to have the insects out at odd intervals. None of the 

 pairs emerged, as did the Pernyi, together ; however there are 

 other cocoons of this species, and they may produce better 

 results. " The cocoon somewhat resembles that of Cynthia, but 

 it is smaller, and more elongated ; the species altogether is 

 smaller." (Catalogue Raisonne.) 



Attacus Cynthia. On the 8th March a single male emerged, 

 and another on the 11th. On the 14th a female emerged, which 

 laid eggs and died Avithout pairing. In order to be successful in 

 getting these moths to pair, the male and female should emerge 

 together or within a .short time of one another. Up to the 31st 

 March no others have emerged. 



" Cynthia moths generally emerge about the end of June, 

 and the eggs hatch at the ordinary temperature about a fortnight 

 after having been laid." 



" In hot climates this species become bivoltine and even 

 polyvoltine." (Wailly.) 



r 



Resume of the Insects that have appeared up to date — 

 (2xD April 1893.) 



Of Pernyi there were eleven cocoons. All hatched 

 successfully. 



Of Polyphemus, seven cocoons. Five males hatched and one 

 female. On opening the remaining cocoon I found the thorax of 

 the chrysalis sunken in, and upon cutting it open it was quite 

 hollow with a growth of white fungus. 



