February, 1913. 



KNOWLEDGE. 



49 



It may be noticed that 

 a " small white " will 

 sometimes place itself 

 sideways, so that its 

 wings lie flat on the leaf. 

 The same is true of 

 "Meadow Browns," which 

 sometimes thus place 

 themselves on the ground. 

 Such a position would 

 aid in the concealment 

 and (in the absence of 

 any other explanation of 

 this curious custom) 

 would seem to be adopted 

 for that reason. 



Figure 49, number 2, 

 is a South European form 

 of the " Brimstone " and 

 the greenish-yellow of the 

 hind wing is repeated at 

 the tip and along the 

 front margin of the fore 

 wing, while the folding 

 conceals a brilliant patch 

 of orange. This repe- 

 tition along the front 

 margin would be useful 

 while the folding of the 



Figure 51. Leaf Butterfly. 



fore wing behind the hind 

 wing was in progress, or 

 was incomplete. 



Figure 49, number 3, 

 is a foreign butterfly in 

 which the silver spots 

 and olive green of the 

 underside of the hind 

 wings are repeated at the 

 tip of the fore wing, 

 whilst the rest of the fore 

 wing, concealed when at 

 rest, is of a bright red- 

 brick colour with black 

 spots, and a conspicuous 

 white bar. 



Figure 49, number 4, 

 is the " Small Copper," 

 in which the grey of the 

 hind wing is continued at 

 the tip of the fore wing, 

 and the brilliant colour 

 and spots hidden by the 

 folding over. 



Figure 49, number 5 : 

 Underside of a foreign 

 butterfly. The colora- 

 tion of the hind wing, a 

 dusky brown, is repeated 



Figure 52. 

 Marbled White Butterflies on dead panicles of grass. 



Figure 53. 

 Leaf Butterfly, Kallima. 



