500 
BIONOMIC NOTES 
that of the last, but we were in only partial agreement as to its 
character. However, we had but two specimens available. 
Mycalesis mineus, Linn., f. polydecta, Cram. (Ceylon, 1908). In 
two males exposure of the pencils of hairs on the hind-wings pro¬ 
duced a strong scent, which I compared to burnt sugar, my wife to 
coarse brown sugar, or treacle. 
[ Mycalesis suaveolens , W.-M. & de N. (Assam, 1881). Wood- 
Mason notes: “ The scent-glands and fans . . . emitted a powerful 
and delicious odour resembling that of vanilla for some hours after 
the death of the insect.”] 
[Lethe rohria, Eabr. (Assam, 1881). Wood-Mason notes: “ The 
males of this species emit a delicious vanilla-like scent.] 
Yphthima ceylonica , Hew. (Ceylon, 1908). In a few males 
of this abundant species a very slight scent of chocolate was 
detected. 
Galisto zangis, Fabr. (Jamaica, 1907). In ten males, nearly all 
those examined, there was a scent varying from faint to strong, 
compared to treacle, chocolate, burnt sugar, or caramel, but in one 
instance described simply as aromatic. The male of this species has 
a very conspicuous brand. Ten females were without scent. 
Heteronympha merope, Fabr. (Tasmania, Australia, 1910). This 
butterfly is remarkable for the striking difference between the sexes, 
the males are much the larger and handsomer insects. I found in 
four males a faint but distinct scent, of a sweetish character, some¬ 
times suggesting treacle, sometimes tobacco. In eight females I 
found a decided scent, sweet and flowery. My wife said, “ sweetish, 
like some flower, not quite ‘ Syringa/ not so strong.” I once 
compared it to Philadelphia ,* but in two other specimens it seemed 
to me to have rather a balsamic character. I do not recall any other 
butterfly in which the female has a sweet flowery scent stronger than 
that of the male. 
Elymniinae. 
[Elymnias undularis, Drury. (Assam, 1881). Wood-Mason noted 
that the males emit a strong odour resembling vanilla, the females 
being scentless.] 
Elymnias f raterna y Butl., considered by Bingham to be an insular 
race of the preceding. (Ceylon, 1908). Four males had an odour 
like that of vanilla-scented chocolate : once Mrs. Longstaff compared 
it to very strong honey, or coarse brown sugar. 
1 The Mock-orange, Philadelphus coronarius [Nat. Ord. Saxifragaceae ], is com¬ 
monly called “ Syringa,” a name more properly given to the Lilac, Syringa persica 
[Nat. Ord. Oleaceae ]. 
