128 bombycidjE. 



usual accuracy and elegance by Mr. Westwood, in 

 the Linnean Transactions.* The individual figured 

 is a female ; we have seen another specimen of the 

 same sex belonging to Mr. James Wilson, lately 

 received from Serampore ; and taking into account 

 the prevailing character of the sexual differences 

 in this group, it appears to us that there can be 

 little doubt that this is the female of Phal. Altacus, 

 Lucina of Drury, vol. iii. pi. 34, fig. 1.+ Drury's 

 insect is a male ; all the specimens in this country of 

 Bombyx spectabilis (as far as we know) are females ; 

 the size corresponds ; and the general character of 

 the colour and markings is similar. The fore wings 

 of Lucina are strongly falcate, those of Spectabilis 

 rounded laterally ; and although this peculiarity is 

 in no other instance that we are acquainted with 

 so strongly marked, the considerations formerly ad- 

 duced are sufficient to show that it is not incom- 

 patible with the view now taken of the supposed 

 relationship of the two insects in question. The 

 difference of the ascertained localities does not mili- 

 tate against this view ; nearly all the Saturniaa have 

 a wide geographical distribution; and it is judi- 

 ciously observed by Mr. Hope, that the entomology 

 of Africa (whence Drury obtained his S. lucina) 

 seems to combine the character and possess some of 



* Vol. xviii. Part Third, pi. 31. fig. 3. 



*T Since the above remarks were written, we have learned 

 that the B. spectabilis of Hope has been previously figured by 

 Gray in the Zoological Miscellany, under the name of B. Wal- 

 lichii. 



