56 THE ENTOMOLOGIST. 



M. Stanger Higgs; The Mill House, Upton St. Leonard's, 

 Gloucester. [It is most unusual to find the larvae of Sphinx 

 convolvidi in this country. Is our correspondent quite sure of 

 its identity ? Many moths lie over their usual season for 

 emergence, and remain for a second year or more in pupa ; and 

 doubtless this might happen with S. convolvuli. — Ed.] 



Sphinx convolvuli abundant in Cornwall. — During Sep- 

 tember I captured thirty-eight specimens of Sphinx convolvuli 

 here, and let others go. They were all hovering about the 

 flowers of Nicotina affinis. The most I took in one evening was 

 eight specimens. — H. W. Vivian ; Bosahan, Helston, Cornwall. 



Sphinx convolvuli. — I observed this species on the evening 

 of August 28th, and again September 7th, 1887, flying over the 

 flowers of marvel of Peru (Mirahilis jalapa) in my neighbour's 

 garden, and a friend of mine had a specimen brought him which 

 flew into a house near here. The flower named is particularly 

 attractive to this insect, and should be grown by collectors 

 desirous of taking it. In 1875 a very large number of this 

 species were captured, flying over a patch of the plant in a 

 nursery-garden close to Victoria Park Station on the North 

 London Railway. The place is now a railway-siding for coals, 

 &c., which are not likely to attract either convolvuli or collectors. 

 — C. J. Biggs; 3, Stanley Terrace, West Ham Park, E., 

 December 20, 1887. 



Pupation of Cossus. — Adverting to the question of Cossus 

 lignipei'da pupating in the earth (Entom. xx. 231 — 234), I might 

 say that I have had several larvse given to me during the last 

 three years, which were dug up from a cottage -garden near 

 Stamford Hill, north of London. They were some distance 

 from any tree, and I have now four found in the same 

 way. Neither Newman nor Morris give the time when they 

 pupate, and Merrin's ' Lepidopterists' Calendar ' leads me to 

 think that the pupa is to be found from November to May ; but 

 those I have bred did not change till some time in May, and the 

 perfect insects came out about six weeks later. As Merrin 

 points out, the larva is very subject to mildew, which means 

 certain death. — F. Milton; 104, Stamford Hill, London, N. 



Assembling of Males of Bombyx quekcus. — On August 1st 

 last I bred a crippled female of B. quercus from a pupa which had 



