I 



THE ENTOMOLOGIST. 287 



consigned to my store of "queer" things, times out of mind. 

 Sometimes I almost thought it had been tampered with, but 

 as often came the question, How could it be done ? On the 

 upper wings the colour is so narrow and faint upon four 

 rays on the right side, and upon the five central rays on the 

 left, that I felt no manipulation could produce it, whilst the 

 broad bright stripes upon the five central rays of both lower 

 wings of various lengths, from a quarter of an inch to five- 

 eighths of an inch, seemed to point to some trick, especially 

 so with one central ray, where there is a round dot at the top 

 of the ray, such as might be supposed to be made with a full 

 brush of colour (like a pin-head), but on turning the under 

 side up my doubts always vanished, because here 1 found the 

 whole of the rays on the under side brightish distinct green 

 for a much greater length than any colour appeared upon the 

 upper side; and so ended every examination. Convinced 

 the effect was caused by the bursting of colour-containing 

 cells, yet still fearing to risk such an opinion, I held my 

 peace on the subject, and refrained from exhibiting the 

 specimen. Some months ago 1 received a box of insects 

 from Fernando Po, and on one specimen of P. Calypso, from 

 thence, I observed faint traces of this peculiar green (Scheel's 

 green) in small patches, and at once decided that the colour 

 in both specimens arose from the same cause. By a recent 

 mail-steamer 1 have received a box containing many speci- 

 mens of Lepidoptera from Calabar (West Africa), and amongst 

 them several P. Calypso, and on one of these this cell-colour 

 has burst in all sorts of places, but principally along the dis- 

 coidal rays upon the upper wing, making it a truly " green- 

 veined white;" there are also some small green spots upon 

 the lower wing and upon the under side. On seeing this 

 specimen all my doubts were ended ; and the Middleton 

 specimen takes its place as one of my most interesting 

 aberrations, I shall be glad to hear, through the 'Entomo- 

 logist,' if there are any other such-marked specimens amongst 

 us: to me these are quite a treat. It is utterly impossible 

 that the African specimens could have been tampered with, 

 and the effect is identical in all three specimens. The Mid- 

 dleton specimen was bred; the African specimens of course 

 caj)tured by negro boys, and they came here, unset, in 

 envelopes, made by folding a piece of square paper into a 



