Description
The wingspan is about 22–23 mm. Adults have been recorded on wing from January to March.Range
Moths of this family are found in the desert regions of the south-western United States, including Arizona, Nevada and California.Taxonomy
The species was initially described in Lepidoptera: Geometridae: Eupitheciini as ''Eupithecia deserticola'' McDunnough 1946. The name entered into some electronic databases in this combination. However, due to earlier use by ''Eupithecia deserticola'' Turati (1934) as a different species from Libya, the name combination was then considered preoccupied for nomenclature. This led Clifford D. Ferris and Vladimir G. Mironov (2007) establish ''Eupithecia jamesi'' Ferris & Mironov, 2007 as a replacement name making ''E. deserticola'' McDunnough a junior secondary homonym. However, Kemel & Koçak (2016) clarify that a replacement name had already been previously published as ''Eupithecia zekiyae'' Koçak, 1986. They treated ''Eupithecia jamesi'' Ferris & Mironov, 2007 as junior objective synonym of ''E. zekiyae'' Koçak, 1986, but can be more simply viewed as a superfluous replacement name. However, as of Aug. 2023, some websites continue to report the species under ''E. jamesi''References
External links
* jamesi Moths described in 2007 Moths of North America {{Eupithecia-stub