586 



INSECTS ARROAD. 



to determine. It is doubtless in some degree dependent on the 

 form of the apical angle of the wing, and this form of the wing 

 cannot at present, I believe, be fully relied upon. That the 

 form of the wing varies in some Butterflies according to the 

 localities of the individuals, is unquestionable; and if this 

 should be ascertained to be the case here, I think it may pos- 

 sibly be followed by the discovery that all the supposed species 

 of Hestia are only so many local or geographical sub-species of 

 one real species." 



This is a very simply coloured Butterfly, the ground colour 

 being white and the markings dark brown. Still, although it 

 has no brilliancy, it is really a liandsome insect, owing partly to 

 its size and partly to the bold contrast between the two hues. 

 The abdomen is white, with a narrow black stripe down the 

 middle. 



Fig. 32!).— Danais insolnta. 

 (Wliite and dark brown ) 



Although the colours of this Butterfly are by no means l)vil- 

 liant, it is a very pretty insect, the hues being soft and well 

 contrasted. 



In the male the basal half of the upper wings is dark brown, 



