Peterson, Katherine, Esayas Amosa, Shelley Pruss, and Nadir Erbilgin. “First Caterpillar Observations of the Mormon Metalmark Butterfly in Grasslands National Park, Saskatchewan”. Blue Jay 68, no. 1 (March 1, 2010). Accessed July 22, 2024. https://bluejayjournal.ca/index.php/bluejay/article/view/5896.