lv, lvi] ( a) 
scent, which Dr. Longstaff compares to that of ‘tuberose’ 
or Freesia, and to my mind suggests jasmine. (A similar 
scent was detected by Wood-Mason in the Indian C. gnoma 
[pyranthe]. See Journal of the Asiatic Society of Bengal, 
vol. lv., Part II, 1886, No. 4, p. 371.) 
“ Colias electra, Linn. The wings of a male specimen were 
separated, and the costal patches of the hind-wing smelt, 
with a negative result. The left costal patch was then 
scraped with a penknife and the detached scales tested, 
again with a negative result. The right costal patch was 
then gently scraped and the patch itself smelt. I immedi- 
ately perceived a distinct flowery fragrance reminding me 
of heliotrope, with the added suggestion of chocolate. The 
scent, which was quite pleasant, corresponded very fairly 
with my recollection of that of Colias edusa, Fabr., obtained 
in a similar manner (Proc. Ent. Soc. Lond., 1904, p. Ivii). 
In the latter case, however, I was able to detect the odour 
in the detached scales. 
“Tn two males similarly examined by Dr. Longstaff, the 
scent, although sweet, contained a disagreeable element 
which led him to compare it to that of ‘bad sweetmeats.’ 
This was not the case with the specimen above recorded 
by me, though I can confirm the observation with regard 
to one of Dr. Longstaff’s males. 
“Two specimens of Zeracolus achine, Cram., 6, emitted a 
distinct flowery perfume, something like that of honeysuckle. 
Another seemed to be devoid of odour; the female also was 
found to be scentless. 
“The scent of TZeracolus annx, Wallgrn., ¢, is faint, 
but quite unmistakably present in some individuals. It is 
flowery, with a slight roughness or spiciness suggestive of 
heliotrope. Dr. Longstaff failed to detect a scent in one of 
his specimens, but found it very faintly present in a second. 
He is inclined to compare it with that of G. rape. 
“In Teracolus auxo, Luc., ¢, the fragrance may be strong, 
in which case it resembles that of some heavily-scented 
white flowers such as ‘Syringa’ (Philadelphus) or jasmine. 
There is no suggestion of either lemon or rose—hoth of 
these being odours not uncommonly met with among Pierines. 
