368 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, Voi. XIIf. 
within range of her vision she slowly and majestically opens and closes her 
wings several times, 
The males when resting act in a similar manner, but are by no means so 
sensitive as the females, 
In captivity the moths lived from three to five days, 
Observations and Experiments. 
The first experiments. were directed to determine whether the male was 
attracted by the sight of the female, or whether he merely perceived an odour 
emanating from her, 
Five females were placed in a clear glass battery-jar, having a wide open 
mouth ; the mouth was covered witha coarse-meshed mosquito-netting, to 
allow a free circulation of air between the interior of the jar and the outside, 
Five males were liberated about 100 feet away from the jar; they imme- 
diately flew to it and fluttered about the mouth, 
The jar was then inverted (placed mouth downward) and sand packed 
around the open end, so as to prevent the air escaping from the interior, 
Thus the females remained visible through the glass, but no scent could 
eome from them, Under these circumstances all the males flew away at once 
and some disappeared from sight, 
When, however, the jar was turned open-end up again all the males 
reappeared, flying excitedly round the mouth. 
This experiment was often repeated, and always with the same result, The 
males never pay the least attention to females which are enclosed ina her- 
metically sealed preserving jar of clear glass, 
Assuming that the males are able to see through glass which appears 
transparent to us, we may conclude that sight alone is not sufficient to attract. 
the male towards the female, or even to retain him in her presence when he 
is. within a few inches of her, 
Another experiment, which seems to show that the male depends solely 
upon scent in seeking the female, may be performed as follows :—A female is 
wrapped in loose raw cotton, so as to be invisible and yet allow a scent to 
emanate fromher, The males then fly tothe cotton and, crawling all over 
it, flutter their wings excitedly and grasp the cotton repeatedly with their 
abdominal claspers. 
In another series of experiments, the females were enclosed in a wooden. 
box having a paper chimney rising from one end, the other end being open 
and covered with mosquito-netting, 
This box was so arranged that a current of air blew in through the open end 
and out of the chimney, The females were invisible from the outside, and 
yet any scent from them would be carried up the chimney into the outer air. 
When the males were liberated they flew to the mouth of the chimney and 
fluttered about in its neighbourhood, None came to the large open end of 
the box, into which the air was blowing. 
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