The Recently Extinct Plants and Animals Database

Plebejus idas lotis Lintner, 1878

Lotis blue



Taxonomy & Nomenclature

Synonym/s: Plebejus anna lotis Lintner, 1878; Lycaeides argyrognomon lotis Lintner, 1878; Lycaeides argyrognomon lotis Lintner, 1879 (incorrect year); Lycaeides idas lotis Lintner, 1878


The valid scientific name of this species is uncertain (see list of synonyms at the top of this profile).


Conservation Status

Last record: 1983 (Suckling et al. 2004); 1994?



California, USA


Biology & Ecology










Arnold, R. A. 1993. The Lotis Blue, Lycaeides Idas Lotis (Lintner). In: Conservation Biology of the Lycaenidae (Butterflies) (T.R. New, ed.). Occasional Paper of the IUCN Species Survival Commision no. 8. Information Press, Oxford.

Black, S. H., and D. M. Vaughan. (2005). Species Profile: Lycaeides idas lotis. In Shepherd, M. D., D. M. Vaughan, and S. H. Black (Eds). Red List of Pollinator Insects of North America. CD-ROM Version 1 (May 2005). Portland, OR: The Xerces Society for Invertebrate Conservation.

NatureServe. 2011. NatureServe Explorer: An online encyclopedia of life [web application]. Version 7.1. NatureServe, Arlington, Virginia. Available (Accessed: September 18, 2011).

Pratt, G.F. 2003. 2003 Survey for the lotis blue. Report to the U.S. Fish and Wildlife Service, Arcata, CA, contract #101812M579.

Suckling, Kieran, Slack, Rhiwena and Nowicki, Brian. (2004). Extinct and the Endangered Species Act. Centre For Biological Diversity. 63 pp.

U.S. Fish and Wildlife Service. (1985). Recovery Plan for the Lotis Blue Butterfly. U.S. Fish and Wildlife Service, Portland, Oregon. 46. pp. (available online:

U.S. Fish and Wildlife Service (USFWS). 2011. Plant and animal species information: Lotis Blue Butterfly. Arcata Fish and Wildlife Service. Accessed at


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