SMERINTHUS OCELLATUS. 103 



colour black-brown, the segmental divisions with a 

 tinge of claret-red. (J. H., 25, 10, 86.) 



Smerinthus populi. 

 Plate XX, fig. 2 (see ante p. 20). 



Mr. Buckler figured this larva on September 18th, 

 1860, September 12th, 1861, August 3rd and 5th, 

 1867 ; he bred the imago June 23rd, 1868. I have in 

 my note-books a vast number of notices of this species 

 in all its stages, from which I purpose to supplement 

 Mr. Buckler's account of the larva by descriptions of 

 the egg and pupa, and a list of dates. I have bred the 

 moth on nearly every day between May 5th and June 

 22nd ; on June 7th it was brought to me from street 

 lamps ; in 1876 I bred a moth on August 16th from a 

 larva sent to me by Mr. G. F. Mathew on July 12th, 

 an example of an occasional second flight ; but the 

 ordinary single flight must extend well through July 

 because I have found eggs as late as July 27th, the 

 larvae from which hatched on 31st; and whilst the 

 earliest hatching I recorded was on June 19th, the 

 latest was on August 12th, and the egg state does not 

 last very long; eggs laid June 21st produced larvae 

 July 1st. In 1882 I measured eggs from the first and 

 the last batches of the same laying, and again in 1886 

 Mr. W. H. B. Fletcher's careful kindness enabled me 

 to repeat this examination. I should like to follow the 

 matter up by rearing a whole brood of larvae, and 

 breeding the moths, but must now leave this to be 

 done by some one else ; I know so much as this, that 

 once I bred the moths from seven or eight eggs of 

 the latest batch of a laying, and that they were all 

 females. 



The eggs I have found at large were deposited in 

 pairs on poplar leaves, on the upper or under side in- 

 differently ; I suppose the fact that they were generally 

 from five to seven feet above the ground need not in- 



