Coy [Iviii, lix 
unrubbed. The female was always found by me to be scent- 
less; but one tested, after death, by Dr. Longstaff, had a 
strong ‘mousy’ odour, like henbane ; an observation which I 
can confirm. 
“The scent of Mylothris riippellii, 3, is in the opinion of 
both of us indistinguishable from that of MW. agathina, ¢. A 
female specimen, when dead, was noted by Dr. Longstaff as 
having a slight ‘black-beetle’ odour ; this, however, I failed 
to detect. 
“Jn nearly all the specimens of Mylothris trimenia, Butl., 3, 
which I was able to test, there was a strong, pleasant, 
characteristic odour, not easily described, and quite distinct 
from that of IM. agathina. It contains a predominating 
sweet flowery constituent, perhaps a little like that of Pina- 
copteryx pigea, but reminding me rather of sweet-pea than of 
honeysuckle. Besides this there seems to be an element of 
sweetbriar, but without the characteristic roughness— 
recalling rather the rose than the foliage of that plant. The 
scent also conveys a suspicion of orange or ]emon-peel—nearer 
orange. The scent of nearly all Dr, Longstaft’s specimens 
was noted by him as being like that of clover ; in one, how- 
ever, it was thought to be like that of G. rapx. The female 
was found by me to be scentless. 
“Only one specimen of Glutophrissa saba, Fabr., 3, was 
tested ; no odour was detected. 
“A few specimens of Synchloé hellica, Linn., 3 ,examined by 
me gave a distinct, though not very strong scent like that of 
gorse. The females were odourless, as indeed were many of 
the males. A male tested by Dr. Longstaff was recorded by 
him as having ‘a very slight, heavy, flowery odour.’ 
“It is worthy of notice that although in all these species 
the intensity of the scent varies, sometimes greatly, as between 
different individuals, this variation bears no definite relation 
to the condition as to freshness of the specimen examined. I 
have no clear evidence that the scent is discharged more 
copiously during courtship; though this may quite possibly 
be the case. The perfume may persist for some little while 
after the death of the insect, but has generally become much 
impaired or has disappeared altogether by the time that the 
