Syngrapha celsa, the plain silver Y or western conifer looper, is a moth of the family Noctuidae. The species was first described by Henry Edwards in 1881. It is found in North America from British Columbia to California, Idaho, Nevada, Arizona and New Mexico.

Syngrapha celsa
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Superfamily:	Noctuoidea
Family:	Noctuidae
Genus:	Syngrapha
Species:	S. celsa
Binomial name
Syngrapha celsa H. Edwards, 1881
Synonyms
Plusia celsa Syngrapha octoscripta ab. beta Syngrapha altera ab. alterana

The wingspan is 34–38 mm. Adults fly from July to September depending on the location.

The larvae feed on Abies lasiocarpa, Abies grandis, Abies concolor, Picea egelmannii, Picea glauca, Pinus monticola and Tsuga heterophylla.

Subspecies

There are two recognised subspecies:

• Syngrapha celsa celsa
• Syngrapha celsa sierra

External links

• Davis, John (August 19, 2013). "Species Syngrapha celsa - Hodges#8944". BugGuide. Retrieved November 13, 2020.
• Detailed Species info^{[dead link]}

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