Adjustment of colour in various pupiv, etc. 385 



1 pupa was discoloured, but bad probably been inter- 

 mediate between a light and darh grey (2 a, h). 



6 



The form with white ground perliaps indicates some 

 special influence of tlie surroundings in the direction of 

 producing a peculiarly close resemblance ; but more 

 experiments are needed in order to render it certain that 

 the case was not that of a rare individual peculiarity. 



{h) In fair light. 

 1 pupa was intermediate between light and dark 



yellow-green (1 a, h). 

 1 pupa was light yellow-green (1 a), with a tendency 



towards bone-colour in the ground (2). 

 2 



(c) In dark comer. 

 The single pupa was discoloured, but was probably 

 light yellow-green (1 a), with some tendency towards 

 grey (2). 



(13) YELLOW PAPER, {a) III strong light. 



1 pupa was dark yellow- green (1 &). 



3 pupse were yellow-green (1), discoloured, but pro- 

 bably light (1 a), or intermediate between light 

 and dark (la, l)). 



2 pupae were light yellow-green (1 a), with some 



tendency towards grey. 



6 



~ il^i) Through glass. 



The single pupa was dead, and had entirely blackened. 



(c) On glass. 



The single pupa was discoloured, but was probably 

 yellow-green, and certainly had not been highly pigmented. 



(14) YELLOW-ORANGE LENO. 

 This label could not be found as distinct from the yellow 

 (13) and orange (14) ; or 1 may have overlooked it. 

 The results are certainly included in one or more of the 

 sub-divisions of (13) or (14), inasmuch as the total number 

 of the pupge examined is 72, — the number given by Mr. 

 Merrifield, 



TRANS. ENT. SOC. LOND. 1899. — PART IV. (DEC.) 26 



