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
Verified Sightings
Displaying 1 - 24 of 65 verified sightings
Observation date: Aug 31, 2019
Submitted by: Robert Gorman
Region: California, United States
Verified by: Ken Davenport
Verified date: Dec 24, 2019
Observation date: Jul 13, 2019
Submitted by: tomoclark
Region: Modoc County, California, United States
Verified by: Ken Davenport
Verified date: Aug 08, 2019
Observation date: Jul 12, 2013
Submitted by: Team Kweeper
Region: Alpine County, California, United States
Verified by: Ken Davenport
Verified date: Jul 15, 2018
Observation date: Sep 02, 2017
Submitted by: Robert Gorman
Region: Mono County, California, United States
Verified by: Ken Davenport
Verified date: Sep 21, 2017
Observation date: Sep 02, 2017
Submitted by: diwalks2@gmail.com
Region: Mono County, California, United States
Verified by: Ken Davenport
Verified date: Sep 13, 2017
Observation date: Jun 27, 1985
Submitted by: legacy.reporter (George T. Austin)
Region: Douglas County, Nevada, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Dec 01, 2012
Observation date: Jun 27, 2012
Submitted by: Ken Davenport (Ken Davenport)
Region: Mono County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 01, 2012
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: May 01, 2011
Observation date: May 26, 2009
Submitted by: Ken Davenport (Ken Davenport)
Region: Esmeralda County, Nevada, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: May 01, 2011
Observation date: Jun 13, 2007
Submitted by: legacy.reporter (Jeff Pippin)
Region: Alpine County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: May 01, 2011
Observation date: Jun 13, 2007
Submitted by: legacy.reporter (Jeff Pippin)
Region: Alpine County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Dec 31, 2010
Observation date: unknown
Submitted by: BAMONA (Howard Grisham/Norbert Kondla)
Region: Mono County, California, United States
Verified by: BAMONA
Verified date: Sep 06, 2010
Observation date: unknown
Submitted by: BAMONA (Jeffrey Pippen)
Region: Alpine County, California, United States
Verified by: BAMONA
Verified date: Sep 06, 2010
Observation date: unknown
Submitted by: BAMONA (Jeffrey Pippen)
Region: Tuolumne County, California, United States
Verified by: BAMONA
Verified date: Sep 06, 2010
Observation date: unknown
Submitted by: BAMONA (Jeffrey Pippen)
Region: Alpine County, California, United States
Verified by: BAMONA
Verified date: Sep 06, 2010
Observation date: Jul 12, 1990
Submitted by: legacy.reporter (`J. B. Vernon)
Region: Mono County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Aug 02, 2010
Observation date: Jun 26, 1961
Submitted by: legacy.reporter (Oakley Shields)
Region: Mono County, California, United States
Verified by: legacy.verifier (Garth & Tilden)
Verified date: Dec 16, 2009
Observation date: Jul 28, 1958
Submitted by: legacy.reporter (Oakley Shields)
Region: Mono County, California, United States
Verified by: legacy.verifier (Garth & Tilden)
Verified date: Dec 16, 2009
Observation date: Aug 11, 1960
Submitted by: legacy.reporter (Oakley Shields)
Region: Mono County, California, United States
Verified by: legacy.verifier (Garth & Tilden)
Verified date: Dec 16, 2009
Observation date: Jul 18, 1958
Submitted by: legacy.reporter (Oakley Shields)
Region: Tuolumne County, California, United States
Verified by: legacy.verifier (Garth & Tilden)
Verified date: Dec 16, 2009
Observation date: Jul 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: Jul 19, 1976
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 23, 1986
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 27, 2002
Submitted by: Ken Davenport (Ken Davenport)
Region: Mono County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Oct 19, 2009
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