Attributes of Euphilotes baueri
Bauer's Dotted-Blue
Euphilotes baueri (Shields, 1975)
Family: Lycaenidae
Subfamily: Polyommatinae
Identification: Male pale blue above without orange hindwing band. Female gray-brown with blue scaling extensive to almost none. Orange aurora band on outer edge of hindwing ranging from medium to absent. Underside snowy white with distinct black line on wing margins. Black spotting bold. Pale orange band on margin of hindwing narrow.
Wing Span: 3/4 - 7/8 inches (1.9 - 2.2 cm).
Life History: Males patrol all day near host plants to find receptive females. Eggs are laid singly on host plant flowers; caterpillars eat flowers and fruits, and are protected by ants. Chrysalids hibernate in sand or leaf litter.
Flight: One flight; mid-April to late June.
Caterpillar Hosts: Various wild buckwheats (Eriogonum species)
Adult Food: Flower nectar especially that from Eriogonum species.
Habitat: Dry slopes and flats with scattered short brush.
Range: East and northeastern California, Nevada, and western Arizona.
Conservation: Habitats may be susceptible to invasion by cheatgrass. Surveys should be undertaken.
NCGR: G2,G3 - for species. Imperiled because of rarity (6 to 20 occurrences), or because of other factors demonstrably making it very vulnerable to extinction throughout its range. (Endangered throughout its range). OR very rare or local throughout its range or found locally in a restricted range . The Nature Conservancy rank of T1 - Critically imperiled because of extreme rarity (5 or fewer occurrences, or very few remaining individuals), or because of some factor of its biology making it especially vulnerable to extinction. (Critically endangered throughout its range) applies to a subspecies from the San Bernardino Mountains of southern California.
Management Needs: Maintain habitat together with host plants of all known populations. Survey populations and their susceptibility to invasive alien weeds.
Taxonomy Notes:
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.
Instructions: Click on the map and move your mouse to pan.
Zoom by using the plus [+] and minus [-] on the left side of the map.
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By default, the fifty most recently verified sightings are below. Sort by Observation Date to see the most recent sightings, or filter the sightings by region to get a regional list.
| Observation Date | Submitter | Region |
Verified Date |
||
|---|---|---|---|---|---|
| April 13, 1969 | legacy.reporter (unknown) | Clark County, Nevada, United States | December 01, 2012 | Details | |
| May 23, 1980 | legacy.reporter (John F. Emmel) | Nye County, Nevada, United States | January 01, 2012 | Details | |
| June 23, 2010 | legacy.reporter (Paul Opler Evi Buckner-Opler) | Humboldt County, Nevada, United States | December 31, 2010 | Details | |
| May 06, 1985 | legacy.reporter (Gordon F. Pratt) | San Bernardino County, California, United States | January 07, 2010 | Details | |
| May 01, 1985 | legacy.reporter (Gordon F. Pratt) | San Bernardino County, California, United States | January 07, 2010 | Details | |
| May 02, 1986 | legacy.reporter (Gordon F. Pratt) | San Bernardino County, California, United States | January 07, 2010 | Details | |
| April 16, 1989 | legacy.reporter (Gordon F. Pratt) | San Bernardino County, California, United States | January 07, 2010 | Details | |
| May 03, 2005 | legacy.reporter (Gordon Pratt) | San Bernardino County, California, United States | January 07, 2010 | Details | |
| May 23, 1967 | legacy.reporter (David L. Nauer) | Inyo County, California, United States | January 07, 2010 | Details | |
| May 06, 1985 | Ken Davenport (Ken Davenport) | Inyo County, California, United States | October 16, 2009 | Details | |
| May 07, 1985 | Ken Davenport (Ken Davenport) | Inyo County, California, United States | October 16, 2009 | Details | |
| May 13, 2006 | Ken Davenport (Ken Davenport) | Inyo County, California, United States | October 16, 2009 | Details | |
| May 19, 1983 | legacy.reporter (Sterling O. Mattoon) | Mono County, California, United States | January 23, 2008 | Details | |
| January 01, 1950 | legacy.reporter | Mohave County, Arizona, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Inyo County, California, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Nye County, Nevada, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Lincoln County, Nevada, United States | December 31, 2004 | Details | |
| January 01, 1950 | legacy.reporter | Washington County, Utah, United States | December 31, 2004 | Details |
