Attributes of Strymon avalona
Avalon Scrub-Hairstreak
Strymon avalona (W.G. Wright, 1905)
Family: Lycaenidae
Subfamily: Theclinae
Identification: One short tail on the hindwing. Upperside gray; hindwing with red or yellow spot near tail; may have small white spots at margin. Underside ashy gray, slightly darker on inner half of wing. Submarginal and postmedian lines faint or lacking.
Wing Span: 3/4 - 1 inch (1.9 - 2.5 cm).
Life History: Eggs are laid on terminal buds and on flower buds.
Flight: Many broods from February-December.
Caterpillar Hosts: Silverleaf lotus (Lotus argophyllus var. ornithopus) and deerbrush (Lotus scoparius).
Adult Food: Nectar from flowers including common sumac (Rhus laurina) and giant buckwheat (Eriogonum giganteum).
Habitat: Chaparral and grassy areas.
Range: Found only on Santa Catalina Island, off the coast of southern California.
Conservation: This species is one of the most limited U. S. species and should be conserved.
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: Maintain stands of host plants. Prevent loss or destruction of habitat.
Taxonomy Notes:
Images of Strymon avalona
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The map below displays all verified sighting records in the BAMONA database for this species. Each record is indicated with a yellow dot. The orange dots on the map provide access to information about the 400 most recently verified sightings of this species. In some instances, there are several records at the same location. Use the table view to access these records.
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The fifty most recently verified sightings are below. See more recently verified sightings of all species.
| Observation Date | Submitter | Region |
Verified Date |
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|---|---|---|---|---|---|
| April 09, 2010 | legacy.reporter (Jim Brock) | Los Angeles County, California, United States | December 31, 2010 | Details | |
| April 09, 2010 | legacy.reporter (Jim Brock) | Los Angeles County, California, United States | December 31, 2010 | Details | |
| April 09, 2010 | legacy.reporter (Jim Brock) | Los Angeles County, California, United States | December 31, 2010 | Details | |
| May 26, 1979 | legacy.reporter (Glen Gorelick) | Los Angeles County, California, United States | March 09, 2010 | Details | |
| March 24, 1976 | lawrencegall (Larry Gall) | Los Angeles County, California, United States | January 07, 2010 | Details | |
| April 20, 1975 | legacy.reporter (Larry Orsak) | Los Angeles County, California, United States | January 06, 2010 | Details | |
| August 09, 1967 | legacy.reporter (Fred T. Thorne) | Los Angeles County, California, United States | January 06, 2010 | Details | |
| April 08, 1951 | legacy.reporter (Lloyd Martin) | Los Angeles County, California, United States | January 05, 2010 | Details | |
| September 13, 1993 | legacy.reporter (Jeffrey Glassberg) | Los Angeles County, California, United States | January 05, 2010 | Details | |
| August 11, 1920 | legacy.reporter (J. A. Comstock) | Los Angeles County, California, United States | January 04, 2010 | Details | |
| August 04, 1920 | legacy.reporter (J. A. Comstock) | Los Angeles County, California, United States | January 04, 2010 | Details | |
| August 14, 1918 | legacy.reporter (J. A. Comstock) | Los Angeles County, California, United States | January 04, 2010 | Details | |
| July 01, 1928 | legacy.reporter (unknown) | Los Angeles County, California, United States | December 17, 2009 | Details | |
| May 19, 1933 | legacy.reporter (unknown) | Los Angeles County, California, United States | December 17, 2009 | Details | |
| August 19, 1926 | legacy.reporter (J. W. Tilden) | Los Angeles County, California, United States | October 15, 2009 | Details | |
| August 06, 1925 | legacy.reporter (J. A. Comstock) | Los Angeles County, California, United States | October 13, 2009 | Details | |
| July 01, 1928 | legacy.reporter (C. Dammers) | Los Angeles County, California, United States | October 13, 2009 | Details | |
| August 06, 1925 | legacy.reporter (J. A. Comstock) | Los Angeles County, California, United States | September 18, 2009 | Details | |
| July 01, 1928 | legacy.reporter (C. Dammers) | Los Angeles County, California, United States | September 18, 2009 | Details | |
| January 01, 1950 | legacy.reporter | Santa Catalina Island County, California, United States | December 31, 2004 | Details |
