Rearing P. canadensis

[gwang]

Hello fellow lepidopterophiles,

I was able to recently capture some P. canadensis, 1 male and 2 females.
I have never reared these butterflies before, and was wondering if
anyone had any suggestions as to how I would get them to mate and
oviposite and such.  How big of an enclosure should I provide?  What's
the prefered host plant?  I've heard that aspen (Populus) as well as ash
(Fraxinus) are used, but there are lots of both species around my house,
but I haven't seen a single P. canadensis around my neighbourhood so
perhaps this isn't so applicable in my case?

TIA
Xi Wang
Winnipeg, Manitoba, Canada.

 
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