lviii] Ca) 
been doubtful, really possessed.a sweetish, fragrant odour, 
somewhat like that of mignonette. Two ladies, whom I had 
not told what to expect, also immediately detected a scent in 
the scales from the same upper surface, which they described, 
without prompting, as ‘flowery’ and like ‘mignonette.’ 
Neither of the ladies had the least doubt or hesitation about 
their verdict. In G. rapx, 2, similarly treated, we could find 
no trace of the odour. These observations were repeated 
three days later with fresh specimens, both male and female, 
and with the same result. 
“‘ In the course of last year (1903) I made several trials on 
common species in conjunction with Dr. Longstaff. Besides 
confirming previous results, we both detected a scent on the 
fore-wings of Satyrus semele, which to me seemed somewhat 
suggestive of chocolate. Dr. Longstaff has continued his 
observations both at home and abroad, and will, I hope, on some 
future occasion communicate his results to the Society. Last 
year I also obtained distinct evidence that the scent in G. 
rape, 3, 1s confined to the scales of the upper surface. This 
perfume has been compared by Mr. Image to that of sweet- 
briar—which seems to me nearer the mark than my own 
suggestion of mignonette. 
“ During the present year I have been able to confirm Dr. 
Longstaff’s opinion that G. brassicx, 3 , possesses a characteristic 
odour. It is not easily appreciated, but when once caught is 
quite unmistakable. The best comparison I can make is with 
the petals of a scarlet geranium. J have again made trials 
with S. semele, ¢, whose scent has a slight pungency which I 
am now inclined to compare with that of sandalwood, though 
there is a delicate flower-like fragrance at the back of it. 
Trials were also made with Pararge megera, 3. The scent, 
as in the case of S. semele, appeared to be confined to the scales 
of the dark streak on the upper-side of the fore-wing. It was 
a faint, but heavy, sweet odour, suggestive of chocolate cream. 
It seemed to me to affect the back of the nose, even perhaps 
the pharynx, and to leave a kind of aroma which was enhanced 
by gentle expiration, Lycena icarus, 3, was found to have a 
faint scent also something like that of chocolate sweetmeats. 
This confirmed a previous observation by Dr. Longstaff. I am 
uncertain about Hypinephele janira, 3, but am inclined to think 
