Article beginning on page 87.
Psyche 9:87, 1900.

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PSYCHE.
NOTES ON TWO CANADIAN BUTTERFLIES.
"BY NAPIEH. N. DURAND, KORTH TORONTO, CANADA, I. Euphoeades troilus L. It is
stated in Sci~ldes's " Everyday Butter-
flies" that this species is Lbdo~ible-
brooded throughout its range." I,
however, hilve not found this to be ordi- narily the case in this neighborhood
(Toronto). Until last summer (1 899)
I had for several years obtained consid- erable numbers of the larvae nncl reared them to chrysalis, but never but in one
season do I remember the chrysalis to
have given birth to the butterfly the
same year, and this was in the unusually warm summer of 1898 when three or
four females emerged, from the loth to
the 12th of August, tlie other pupae in
this as in previous )ears failing to clis- close their inmntes 1111til the following season.
2. Etig'mia j-dbtm Bsd. & Lee.
On fine Gth, 1899, about 15 young
larvae of this species were found,
ranged side 1.y side on a leaf of white
birch ; they were not accompiinied by
a web and werc all black in color.
Most of them were easily searecl to ma-
turity, but were not critically observed till the last moult. In their last stage they were found to vary somewhat in
appearance. Most of them were black
or almost black, except unclcmeath and
thereabouts where they were green ;
they were also sprinkled with wide
atoms, and tawny in some places. Ap-
proaching maturity however they be-
came tinted with gsecn;:incl when quite
mature were dark green, the white at-
oms also greenish. Others were green
thronyhout the whole stage, sprinkled
with greenish-white atoms, and with
the sub-dorsal region reddish-tawny ;
the whole larva becoming paler and
greener until the reddish almost wholly
vanished and the larva became
hiilly
rattier pale green.
I found the pupae also to vary con-
siderably. Some being gray, tinted
with green; others pale greenish-gray ;
others darker gray, without, or almost
without green ; others pale green, some
of them salmon-tinted ; others dull green and pinkish brown ; while others :ig-ain were wholly salmon-tinted and olive
green. In all of these the middle tuber- cles were heavily and brilliantly sil-
vered, especially in the paler colored
pupae. One chrys:ilis found on June
-1, suspended from a milk-weed leaf
was pale green, almost white, and
slightly sprinkled with minute brown
atoms, mostly upon the wing-covers,
especially ~IJOLII their base.
It was interesting to observe that the
green of the chrysalis, though paler, was very similar to the soft green of the
umlerside of the milk-weed leaf, from
which it was suspended.




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