Speyeria adiaste atossa Edwards, 1890

Atossa fritillary



Taxonomy & Nomenclature



Conservation Status


Last record: last seen in 1960



southern California, USA


Biology & Ecology




The last specimen was collected in 1960 from Mount Pinos:






Original scientific description:

Edwards. (1890). The Butterflies of North America. Vol. III Butts N. Amer. 3: 431pp, 51pls.


Other references:

F. Brown (1965), Trans. Am. Entomol. Soc. 91(3): 292, fig. 18

W. Holland (1931), Butt. Book (rev. ed.): 100, pi. 13, fig. 12 cf D

Opler, P. A., and A. D. Warren. 2002. Butterflies of North America. 2. Scientific Names List for Butterfly Species of North America, north of Mexico. C.P. Gillette Museum of Arthropod Diversity, Department of Bioagricultural Sciences and Pest Management, Colorado State University, Fort Collins, Colorado. 79 pp.

Pelham, J. P. (2008). A catalogue of the butterflies of the United States and Canada with a complete bibliography of the descriptive and systematic literature. The Journal of Research on the Lepidoptera. Volume 40. 658 pp.


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