Chionodes petalumensis is a species of moth in the family Gelechiidae. Retrieved April 19, 2018. It is found in North America from southern British Columbia to California, Arizona and Colorado.Moths of California List.Chionodes at funet

Chionodes petalumensis caterpillars feed on oak leaves, including those of the Garry oak (Quercus garryana)Tatum, J. B. Chionodes petalumensis. Butterflies and Moths of Southern Vancouver Island. 2007. and valley oak (Q. lobata).C. petalumensis: Host plants. Natural History Museum, London.

The species was first described from Petaluma, California.Brown, J. W., et al. Catalog of the type specimens of Gelechioidea (Lepidoptera) in the collection of the National Museum of Natural History, Smithsonian Institution, Washington, DC. Zootaxa 510. Auckland: Magnolia Press. 2004.

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