ARTICLES 



69 



that marginal patterns render an insect relatively invisible 

 and that the absence of such pattern makes for conspicuousness, 

 which may account for large brown areas being found in the 

 relatively unpalatable Euploeinae as well as in the palatable 



Satyrinse (188) 



• BR 



► 100 



140 



50 



■ 30 



10 



O Y W 



Diagram No. 4. 



Bl 



Br 



SD 



Satyrinae. There is a further reason why this colouration in the 

 Euploeinae makes for conspicuousness : in many cases the 

 wing is outlined by a band of black which has been shown 

 experimentally (loc. cit.) to accentuate the insect's outline and 



