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In jack pine (Pinus banksiana) area that burned last spring. A sand-encrusted silk-lined tube is attached to the stem of the sand cherry (Prunus pumila) plant on which the moth is perched. The tube-building habit for this species is described in this article: https://archive.org/details/entomologicalnew16acad/page/12/mode/1up?view=theater.
Same moth as https://www.inaturalist.org/observations/225336376.

This seems to be a perfect match to the species description by Brown & Jaeger (2014), with photos found at http://treatment.plazi.org/id/03C28783FFDC597FFF77F936764CFE4B

BOLD shows several records for Canada, though the species is not mentioned in Pohl's (2018) Checklist or in the recent Ontario Moth Checklist by Beadle and King.

According to the species description in Brown and Jaeger (2014), the Y-shaped silvery lines and orange scaling on the FW distinguish C. marita from all other previously described North American Cydia species.

ID features include:
-grayish basal 2/3 of wing, with suffused orange on outer 1/3
-Y-shaped silvery striata along costa
-two silvery transverse lines at midwing
-dark brown line along distal edge of wing margin, broken by white dash at M1
-gray marginal scales

Over 100 exuviae of Ophiogpmphus observed at foot of riffle; absent from shoreline of riffle itself. Five transitioning/emerging consisting of both sexes. Rusty snaketail here as well. No other exuviae found.

Xylophanes campisi
https://v3.boldsystems.org/index.php/Taxbrowser_Taxonpage?taxid=1286626
“Holotypus, Xylophanes campisi Haxaire & Melichar 2023” - Costa Rica, Guanacaste, Area de Conservacion Guanacaste.
Etymology: We name this species after our colleague and friend, Marcos Cesar Campis de Morro Agudo (Brasil, São Paulo), an eminent wildlife photographer who constantly amazes us with his images of Brazilian Sphingidae. May he find here the indicarion of nour great gratitude and admiration.

Etimologia: Damos a esta espécie o nome de nosso colega e amigo, Marcos Cesar Campis de Morro Agudo (Brasil, São Paulo), um eminente fotógrafo da vida selvagem que sempre nos surpreende com suas imagens de esfingídeos brasileiros.
Que ele encontre aqui a indicação de nossa grande gratidão e admiração.