Friday's Blue
Plebejus fridayi Chermock, 1945
Family: Lycaenidae
Subfamily: Polyommatinae
Identification: Upperside of male blue with narrow dark border; upperside of female bright blue with narrow pale markings. Underside of both sexes is dull gray-tan, with an overcast of greenish blue scales that are strong at the base but decreasing in intensity outwardly.
Wing Span: Males 25 mm, females 28 mm.
Life History:
Flight:
Caterpillar Hosts: Friday's Blues are closely associated with sites containing their caterpillar host plant, Whitney Locoweed (Astragalus whitneyi)
Adult Food:
Habitat:
Range:
Conservation:
NCGR:
Management Needs:
Comments: NULL
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Verified Sightings
Displaying 49 - 72 of 74 verified sightings
Observation date: Jun 18, 2004
Submitted by: Ken Davenport (Ken Davenport)
Region: Mono County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Oct 19, 2009
Observation date: Jul 11, 1994
Submitted by: Ken Davenport (Ken Davenport)
Region: Inyo County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Oct 19, 2009
Observation date: Jul 01, 2002
Submitted by: paulopler (Paul Opler)
Region: Mono County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Oct 19, 2009
Observation date: Jul 25, 1981
Submitted by: Ken Davenport (Ken Davenport)
Region: Mono County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Oct 19, 2009
Observation date: Jul 07, 1979
Submitted by: Ken Davenport (Ken Davenport)
Region: Inyo County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Oct 19, 2009
Observation date: Jul 06, 2004
Submitted by: Ken Davenport (Ken Davenport)
Region: Inyo County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Oct 19, 2009
Observation date: Jul 03, 1959
Submitted by: legacy.reporter (R. Stanford, P. Opler)
Region: Tuolumne County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Oct 19, 2009
Observation date: Aug 10, 1996
Submitted by: legacy.reporter (Bruce & Bret Boyd)
Region: Mono County, California, United States
Verified by: legacy.verifier (George T. Austin)
Verified date: Oct 19, 2009
Observation date: Aug 09, 1998
Submitted by: Ken Davenport (Ken Davenport)
Region: Mono County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Oct 19, 2009
Observation date: Jun 20, 1988
Submitted by: Ken Davenport (Ken Davenport)
Region: Inyo County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Oct 19, 2009
Observation date: Jul 22, 1922
Submitted by: legacy.reporter (J. A. Comstock)
Region: Mono County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Oct 19, 2009
Observation date: Aug 03, 1959
Submitted by: legacy.reporter (Oakley Shields)
Region: Madera County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Oct 19, 2009
Observation date: Aug 26, 1998
Submitted by: Ken Davenport (Ken Davenport)
Region: Mono County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Oct 19, 2009
Observation date: Sep 07, 2009
Submitted by: Ken Davenport (Ken Davenport)
Region: Mono County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Oct 13, 2009
Observation date: unknown
Submitted by: legacy.reporter (Lepidopterists' Society)
Region: Madera County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Apr 22, 2008
Observation date: unknown
Submitted by: legacy.reporter (various sources)
Region: Lassen County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Dec 28, 2007
Observation date: Jul 27, 1927
Submitted by: legacy.reporter (Chermock)
Region: Mono County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Dec 28, 2007
Observation date: Jun 19, 2006
Submitted by: Ken Davenport (Ken Davenport)
Region: Esmeralda County, Nevada, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Dec 28, 2007
Observation date: unknown
Submitted by: legacy.reporter (various sources)
Region: El Dorado County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Dec 28, 2007
Observation date: unknown
Submitted by: legacy.reporter (various sources)
Region: Mariposa County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Dec 28, 2007
Observation date: unknown
Submitted by: legacy.reporter (various sources)
Region: Alpine County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Dec 28, 2007
Observation date: unknown
Submitted by: legacy.reporter (various sources)
Region: Inyo County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Dec 28, 2007
Observation date: unknown
Submitted by: legacy.reporter (Yosemite Butterflies)
Region: Tuolumne County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Dec 28, 2007
Observation date: unknown
Submitted by: legacy.reporter (various sources)
Region: Placer County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Dec 28, 2007
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