46 



yellow is not (iiiitc so bright. Both secondaries, however, would be 

 taken from the nndeiside for those of the male were it not for the 

 different shape of the tails. 



The coloration of the body is male throughout with the single excep- 

 tion that the yellow band which extend,^ up both sides of the front at 

 the border of the eye is lacking on the left side, altliough occurring as 

 usual in the male on the right side. The genitalia are male in type, 

 but the internal organs of the right side are much smaller than those 

 of the left side. There is a slight difference also in the antennte, the 

 right antenna being a trifle smaller than the left. The structure of 

 both, however, is female. 



Fig. 10 — I'ajyilio Hirints \i\r. (jlaiifus: iilierranl adult, under suil'acc — natural size (original). 



This remarkable insect has been most carefully studied. The scale 

 coloration is perfectly normal, so far as can be judged by any compara- 

 tively high power. Careful denuding of the base of the right secondary 

 shows that there is no possibility of a fraud, i. e., that the insect is made 

 up from two or more individuals. 



This does not seem to us to be a case of hermaphroditism. The 

 insect is essentially male, but it is an extremely curious sport. It is 

 an aberrant male, imitating in some details the coloration of the female. 



Under the head of "variations and aberrations," of this species, 

 Scudder mentions the fact that he has seen a female from the White 

 Mountains with the yellow of the upper surface, particularly of the 

 lower half of the forewings, slightly tinged with an orange flush. 



