Taxonomic overview of the greater fritillary genus Speyeria Scudder and the atlantis - hesperis species complexes, with species accounts, type images, and relevant literature (Lepidoptera: Nymphalidae) Author Dunford, James C. text Insecta Mundi 2009 2009-09-26 2009 90 1 74 journal article 10.5281/zenodo.5352660 1942-1354 5352660 Speyeria hesperis chitone (Edwards, 1879) ( Figure 40 ) Argynnis chitone Edwards, 1879b: 82 . Speyeria atlantis chitone (Edwards) [ dos Passos and Grey 1947 ]. Speyeria hesperis chitone (Edwards) [ Scott et al. 1998 ]. Common name. Chitone fritillary. Type deposited. Lectotype (male) designated by dos Passos and Grey (1947) at Carnegie Museum of Natural History ( Figure 40 ). Brown (1965) , however, noted the specimen selected by dos Passos and Grey (1947) was not the specimen of Edward’s original description. That specimen is housed in the National Museum of Natural History. Dos Passos and Grey were, however, at liberty to select any syntype and they chose the only male in the Edwards’ Collection housed at Carnegie. Type locality. Southern Utah and Arizona . Defined by dos Passos and Grey (1947) as Cedar Breaks National Monument, Iron County, Utah . Type label data. “ type Chitone [male] So. Utah ; lectotype Argynnis chitone [male] W. H. Edwards designated by dos Passos and Grey 1947 ” . Identification, taxonomy, and variation. Adults of S. h. chitone are generally larger than S. h. wasatchia and have a heavier black patterning above. The ventral hindwing disc of S. h. chitone is either silver or unsilvered. Adult wingspan ranges from 50-55 mm . Range. La Sal and Abajo Mountains in Utah . It is also found near Cedar Breaks National Monument. Life history. Nothing could be gleaned from the literature.