384 Mr. F. Merrifield and Mr. E. B. Poulton 



on 



(h) III good light. 



The single pupa was dead and discoloured, and its posi- 

 tion uncertain. It was obvious however that it had not 

 been strongly pigmented. 



(o) In fair light. 



1 pupa was intermediate between light ydlow-green 



and light grey (1 a, 2 a). 

 1 pupa (dead or emerging) was probably a yellaw- 



grcen form (1). 



2 



{(l) hi shady corner. 



1 pupa was light, grey (2 a^. 



1 pupa was intermediate between light and dark grey 

 C2a,h). 



2 



(e) Fixed to glass near the green paiJer, 



The single pupa was dead, and so discoloured that it 

 could not be placed. 



Hence green paper is far less powerful than yellow or 

 orange paper (Nos. 13, 14, 15), or the natural green of 

 chlorophyll (No. 11) in the production of green pupas of 

 this species, thus agreeing witii the results already obtained 

 in the case of other species (Phil. Trans. 1887, and Trans. 

 Ent. Soc. 1892, /. c). It is noteworthy that the most 

 shaded part of the green surface produced the strongest 

 tendency towards grey forms. 



(11) GREEN CARROT-TOPS. 



1 pupa was intermediate between dark and light 

 yellow-green (1 a, h). 



3 pupae (dead or emerging) were yellow-green, probably 



of the same shade as the above (1 a, h). 



4 



"" (12) WHITE PAPER, (a) In strong light. 



4 pupse were light yellow-green (1 a), one of them 



with a tendency towards grey (2), and one very 

 remarkable in possessing an almost white ground. 

 1 ])upa was intermediate between light and dark 

 yelloio-green (1 a, h). 



