Ferris, C.D. 2007.

Three new species of Eupithecia Curtis from Arizona and New Mexico with discussion of associated species (Lepidoptera: Geometridae: Eupitheciini)

. Zootaxa. 1516, 1 (Jun. 2007), 49–60. DOI:https://doi.org/10.11646/zootaxa.1516.1.5.