The butterflies of the Great Basin exhibit general patterns of distribution and speciation similar to those found for other taxa, particularly birds. Two major centers of infraspecific differentiation and coinciding distribution limits of taxa are identified, each with three subregions. Great Basin butterflies are characterized by pallidity and substantial endemism below the species level.
Austin, George T. and Murphy, Dennis D.
"Zoogeography of Great Basin butterflies: patterns of distribution and differentiation,"
Great Basin Naturalist: Vol. 47
, Article 2.
Available at: http://scholarsarchive.byu.edu/gbn/vol47/iss2/2