About Syngrapha celsa Edwards, 1881
Syngrapha celsa, commonly known as the plain silver Y or the western conifer looper, is a moth species belonging to the family Noctuidae. This species was first formally described by Henry Edwards in 1881. Its range in North America extends from British Columbia, Canada, to California, Idaho, Nevada, Arizona, and New Mexico in the United States. The wingspan of adult moths measures 34 to 38 millimeters. Adults of this species are active in flight from July through September, with timing varying based on the specific location. The larvae of Syngrapha celsa feed on Abies lasiocarpa, Abies grandis, Abies concolor, Picea egelmannii, Picea glauca, Pinus monticola, and Tsuga heterophylla.