Sphinx canadensis

The Canadian Sphinx, Sphinx canadensis, is found in the Northwest of the United States and in Canada. This pages features a breeding report submitted by Alexandre Laberge. . He captured a female of this species, and sent me the following information:

Here the information and pictures of my S. Canadensis. At early august 2018, i found a fresh Sphinx Canadensis female at light in Ste-thérèse, Québec, Canada.  I put her in a medium cage with a cutting branch of Fraxinus Nigra in water bottle. She laid me over 200  little green eggs in 3 days.The eggs hatched only in 4-5 days at room temperature. I put most of the larvae on Fraxinus Nigra(Black Ash). I put the others on F. Pensylvanica(Red ash) and Fraxinus Americana(White ash). All of those died after few days.

Black ash seem the only host plant of this species. That’s probably why he’s a rare sphinx in north america. I raised over 100 larvae in big closed container until early 4th instar(On black ash).I put half of them in 5 large sleeve until late final instar. And the others in my closed box at room temperature until prepupal stage. All of them make it. From L1 to prepupal instar, only 17 days! (Those on closed box).And about 24 days for those Sleeved outside since early L4.

I had a little over 100 pupae!

Here some pictures;

Sphinx canadensis – wild female and mother of the eggs by Alexandre Laberge


Sphinx canadensis eggs by Alexandre Laberge

Sphinx canadensis L1 by Alexandre Laberge

Sphinx canadensis L2 by Alexandre Laberge

Sphinx canadensis L2 by Alexandre Laberge

Sphinx canadensis L3

Sphinx canadensis L4, by Alexandre Laberge

Sphinx canadensis L4 by Alexandre Laberge

Sphinx canadensis L4 by Alexandre Laberge

Sphinx canadensis L5 by Alexandre Laberge

 

Sphinx canadensis L5 by Alexandre Laberge

Sphinx canadensis L5 by Alexandre Laberge

Sphinx canadensis L5 by Alexandre Laberge

Sphinx canadensis L5 by Alexandre Laberge

Thanks for your story Alexandre! Looking at the amount of larvae he raised to pupae, he did a seriously good job with this rare moth.
Alexandre Laberge is a Lepidopterist from Montreal, Quebec that has a lot of experience with collecting and breeding local species, and exotic moths too. We thank him for his story and pictures.

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