288 THE ENTOMOLOGIST. 



triangle, one side a little less than the other, to allow the two 

 edges to be turned over ; when these edges are gummed 

 down, the most safe and perfect plan of packing butterflies is 

 attained. — C. S. Gref/son. 



Variation in the Larva of Smerinthiis Populi (Entom. vi. 

 184). — The peculiar variety, described by Mr. Dawson, occurs 

 occasionally in the West of London. I have taken it about 

 Shepherd's Bush and Acton, but not very recently. The 

 moth does not show, I think, any notable difference. I have 

 ascertained that the peculiarity does not occur in a whole 

 brood, two larvae feeding on a twig, which had evidently 

 descended from the same parent, being unlike in this respect. 

 —J. R. S. Clifford; 59, Robert Street, Chelsea. 



Second appearance of Smerinthiis Populi. — I have ob- 

 sei'ved, like Mr. Craik (Entom. vi. 191), that the iraagos will 

 emerge occasionally in confinement during July and August, 

 from larvaj matured during June and July. The cause, I 

 think, is that the earth into which they have descended is of 

 a higher temperature in tlie flower-pot or breeding-cage than 

 they would have been subjected to had they entered the open 

 ground. Sometimes, also, they may feed up more rapidly, 

 but I do not imagine the effect of that is thus perceptible 

 generally. Specimens of S. Populi may now and then be 

 taken at large in the month of July ; yet it by no means 

 follows that these belong to a second brood, for, as I have 

 repeatedly noticed, some individuals will emerge much later 

 than the majority, even in the same district, the retardation 

 being occasioned by the position of the pupa, the lateness of 

 the larva the preceding season, &c. — Id. 



Zi/gcena Meliloti. — When reading about a small burnet of 

 the Trifblii type, I bethought me I used to have some speci- 

 mens sent to me by my friend Mr. Bond, with a remark : — 

 "May be new; hardly can be a scond brood of Trifolii." 

 This must be nearly twenty years since. Last week I looked 

 in my lumber boxes, and find I have the specimens yet; one 

 I have sent on to be examined, and it has been returned 

 to me as Meliloti. — J. B. Hodgkinson ; 15, Spring Bank, 

 Preston, December 1, 1872. 



Dicranura fiircula Double-brooded (Entom. vi. 197). I 

 have had an imago emerge in August from a pupa of July, 

 but, in all probability, this is a thing which only happens in 



