Attributes of Speyeria adiaste

Unsilvered Fritillary
Speyeria adiaste (W.H. Edwards, 1864)

Family: Nymphalidae
Subfamily: Heliconiinae
Identification: Upperside of male pale reddish-tan to bright brick red; female larger and paler than male. Dark markings scattered and small except for bold postmedian line. Underside pale yellow to gray. Hindwing spots unsilvered and barely contrasting with background color.
Wing Span: 2 - 2 3/8 inches (5 - 6.1 cm).
Life History: Eggs are laid singly on fallen leaves and twigs near violets. First-stage caterpillars hibernate unfed, feeding on violet leaves in the spring.
Flight: One flight from June-July.
Caterpillar Hosts: Violets including Viola quercetorum.
Adult Food: Flower nectar.
Habitat: Openings in redwood and coniferous forests, oak woodlands, chaparral.
Range: Very local, restricted range in California County north to San Mateo County; east to north Los Angeles County and Kern County.
Conservation: Subspecies atossa is extinct; subspecies adiaste has a limited range and may be in jeopardy; while subspecies clemencei has the most extensive range.
NCGR: G3 - Very rare or local throughout its range or found locally in a restricted range (21 to 100 occurrences). (Threatened throughout its range).
Management Needs: Inventory and monitor subspecies adiaste populations and make conservation assessment.
Taxonomy Notes:

Images of Speyeria adiaste

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Speyeria adiaste - adiaste.jpg

Speyeria adiaste - adiaste.jpg

The map below displays all BAMONA data for this species and has three different data layers:
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*The orange dots on the map provide access to information about the 400 most recently verified sightings of this species. Sometimes, there are several records at the same location. Use the table view to access these records.

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Observation Date Submitter Region Verified Datesort icon
June 25, 1930 legacy.reporter (unknown) Kern County, California, United States May 01, 2011 Details
May 27, 1923 legacy.reporter (unknown) Los Angeles County, California, United States May 01, 2011 Details
June 10, 1923 legacy.reporter (John A. Comstock) Los Angeles County, California, United States May 01, 2011 Details
June 28, 2007 legacy.reporter (Ray Collett) Santa Cruz County, California, United States May 01, 2011 Details
June 28, 2007 legacy.reporter (Ray Collett) Santa Cruz County, California, United States December 31, 2010 Details
May 27, 1923 legacy.reporter (unknown) Los Angeles County, California, United States December 31, 2010 Details
June 10, 1923 legacy.reporter (John A. Comstock) Los Angeles County, California, United States December 31, 2010 Details
June 10, 1981 legacy.reporter (Michael Smith) Monterey County, California, United States March 09, 2010 Details
June 06, 1976 legacy.reporter (Michael Smith) Santa Cruz County, California, United States January 07, 2010 Details
July 04, 1976 legacy.reporter (Michael Smith) Santa Cruz County, California, United States January 07, 2010 Details
July 16, 1976 legacy.reporter (R. Gardner) Santa Cruz County, California, United States January 07, 2010 Details
June 03, 1973 legacy.reporter (William Swisher) Monterey County, California, United States January 06, 2010 Details
June 16, 1971 legacy.reporter (William Swisher) Monterey County, California, United States January 06, 2010 Details
June 11, 1969 legacy.reporter (James R. Mori) San Luis Obispo County, California, United States January 06, 2010 Details
June 15, 1951 legacy.reporter (Unknown) San Luis Obispo County, California, United States January 05, 2010 Details
June 19, 1997 legacy.reporter (Jeffrey Glassberg) Monterey County, California, United States January 05, 2010 Details
July 04, 1975 legacy.reporter (Jim Brock) San Luis Obispo County, California, United States January 04, 2010 Details
June 30, 1922 legacy.reporter (Victor Clemence) San Luis Obispo County, California, United States January 04, 2010 Details
January 01, 1950 legacy.reporter (unknown) Los Angeles County, California, United States December 17, 2009 Details
June 24, 1964 legacy.reporter (unknown) Monterey County, California, United States December 17, 2009 Details
June 23, 1977 Ken Davenport (Ken Davenport) Santa Cruz County, California, United States December 16, 2009 Details
June 25, 1984 Ken Davenport (Ken Davenport) Santa Cruz County, California, United States December 16, 2009 Details
June 24, 1977 Ken Davenport (Ken Davenport) Monterey County, California, United States December 16, 2009 Details
July 16, 1984 Ken Davenport (Ken Davenport) Monterey County, California, United States December 16, 2009 Details
June 23, 1990 Ken Davenport (Ken Davenport) Monterey County, California, United States December 16, 2009 Details
June 10, 1922 legacy.reporter (J. A. Comstock) Los Angeles County, California, United States December 16, 2009 Details
May 28, 1947 legacy.reporter (C. H. Dickenson) Monterey County, California, United States December 16, 2009 Details
July 23, 1932 legacy.reporter (L.M. Martin) Kern County, California, United States December 16, 2009 Details
July 07, 1918 legacy.reporter (J. A. Comstock) Kern County, California, United States December 16, 2009 Details
July 09, 1918 legacy.reporter (J. A. Comstock) Kern County, California, United States December 16, 2009 Details
July 18, 1918 legacy.reporter (J. A. Comstock) Kern County, California, United States December 16, 2009 Details
July 01, 1959 legacy.reporter (Joe Wilson) Kern County, California, United States December 16, 2009 Details
July 17, 1933 legacy.reporter (L. M. Martin) Kern County, California, United States December 16, 2009 Details
June 10, 1922 legacy.reporter (J. A. Comstock) Kern County, California, United States December 16, 2009 Details
June 13, 1922 legacy.reporter (J. A. Comstock) Kern County, California, United States December 16, 2009 Details
June 21, 1923 legacy.reporter (J. A. Comstock) Kern County, California, United States December 16, 2009 Details
June 21, 1923 legacy.reporter (C. Kirkwood & J. Comstock) Kern County, California, United States December 16, 2009 Details
August 12, 1923 legacy.reporter (J. D. Gunder) Kern County, California, United States December 16, 2009 Details
April 25, 1930 legacy.reporter (No name on label) Kern County, California, United States December 16, 2009 Details
June 24, 1930 legacy.reporter (No name on label) Kern County, California, United States December 16, 2009 Details
June 25, 1932 legacy.reporter (J. A. Corcoran) Kern County, California, United States December 16, 2009 Details
May 30, 1934 legacy.reporter (Oscar Sette) Kern County, California, United States December 16, 2009 Details
June 01, 1934 legacy.reporter (Oscar Sette) Kern County, California, United States December 16, 2009 Details
June 29, 1934 legacy.reporter (Oscar Sette) Kern County, California, United States December 16, 2009 Details
September 03, 1939 legacy.reporter (R. H. Reid) Kern County, California, United States December 16, 2009 Details
September 06, 1930 legacy.reporter (No name on label) Kern County, California, United States December 16, 2009 Details
September 03, 1930 legacy.reporter (No name on label) Kern County, California, United States December 16, 2009 Details
June 25, 1930 legacy.reporter (Chris Henne) Kern County, California, United States December 16, 2009 Details
September 03, 1930 legacy.reporter (Chris Henne) Kern County, California, United States December 16, 2009 Details
June 21, 1923 legacy.reporter (John A. Comstock) Kern County, California, United States December 16, 2009 Details