46 
yellow is not quite so bright. Both secondaries, however, would be 
taken from the underside 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 extends up both sides of the front at 
the border of the eye is lacking on the left side, although 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 antenna, the 
right antenna being a trifle smaller than the left. The structure of 
both, however, is female. 
Fig. 16 — Papilio tumus var. glaucus: aberrant adult, under surface — 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. 
