The Recently Extinct Plants and Animals Database


Plebejus idas lotis


Species Authority
Lintner, 1878
Plebejus anna lotis, Lintner 1878; Lycaeides argyrognomon lotis, Lintner 1878; Lycaeides argyrognomon lotis, Lintner 1879 (incorrect year); Lycaeides idas lotis, Lintner 1878
Common Name
Lotis blue
California, USA
Last Record
1983 (Suckling et al. 2004); 1994?
IUCN status
Not evaluated
TSE Forum thread
The valid scientific name of this species is uncertain (see list of synonyms at the top of this profile).
[b]Species Bibliography:[/b]
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). [url=]Extinct and the Endangered Species Act[/url]. 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