Ellis' Dotted-Blue
Euphilotes ellisi (Shields, 1975)
Family: Lycaenidae
Subfamily: Polyommatinae
Identification: Male blue above with narrow black outer borders and narrow pink band on outer edge of hindwing. Female brown or with extensive blue. Orange hindwing band moderate to small. Underside of forewing has submarginal row of dark spots smudged and continuous red-orange band on outer margin of hindwing.
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 from mid-July to early September.
Caterpillar Hosts: Corybose and Heerman buckwheats.
Adult Food: Flower nectar especially that from Eriogonum species.
Habitat: Dry rocky or gravelly slopes or flats.
Range: Utah and western Colorado south to northwestern New Mexico and n. Arizona. Also western Nevada and eastern California.
Conservation: All or most populations are or may be susceptible to invasion and decline due to cheatgrass.
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 . All named subspecies are of conservation concern.
Management Needs: Maintain habitat together with host plants of all known populations. Monitor populations and presence of invasive weeds, especially cheatgrass.
Comments: NULL
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Verified Sightings
Displaying 1 - 24 of 42 verified sightings
Observation date: Aug 14, 2020
Submitted by: stevecary
Region:
Verified by: stevecary
Verified date: Aug 12, 2024
Observation date: Aug 06, 2020
Submitted by: stevecary
Region: Sandoval County, New Mexico, United States
Verified by: stevecary
Verified date: Aug 11, 2024
Observation date: Sep 05, 2023
Submitted by: stevecary
Region: San Juan County, New Mexico, United States
Verified by: stevecary
Verified date: Dec 04, 2023
Observation date: Sep 05, 2023
Submitted by: twofried
Region: San Juan County, New Mexico, United States
Verified by: stevecary
Verified date: Sep 07, 2023
Observation date: Sep 06, 2019
Submitted by: Robb Hannawacker
Region: San Juan County, Utah, United States
Verified by: RaisingButterfl...
Verified date: Dec 15, 2022
Observation date: Aug 29, 2019
Submitted by: Joey Bom
Region: Grand County, Utah, United States
Verified by: RaisingButterfl...
Verified date: Feb 02, 2020
Observation date: Sep 01, 2012
Submitted by: ddodd
Region: San Juan County, Utah, United States
Verified by: RaisingButterfl...
Verified date: Feb 08, 2014
Observation date: Sep 08, 1978
Submitted by: legacy.reporter (George T. Austin)
Region: Clark County, Nevada, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Dec 01, 2012
Observation date: Aug 04, 1999
Submitted by: legacy.reporter (Ray Stanford)
Region: Navajo County, Arizona, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Dec 01, 2012
Observation date: Aug 26, 1979
Submitted by: legacy.reporter (George T. Austin)
Region: Clark County, Nevada, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Dec 01, 2012
Observation date: Sep 11, 1978
Submitted by: legacy.reporter (George T. Austin)
Region: Clark County, Nevada, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Dec 01, 2012
Observation date: Aug 19, 1979
Submitted by: legacy.reporter (George T. Austin)
Region: Clark County, Nevada, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Dec 01, 2012
Observation date: Sep 02, 1978
Submitted by: legacy.reporter (George T. Austin)
Region: Clark County, Nevada, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Dec 01, 2012
Observation date: Aug 21, 1979
Submitted by: legacy.reporter (George T. Austin)
Region: Clark County, Nevada, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Dec 01, 2012
Observation date: unknown
Submitted by: BAMONA
Region:
Verified by: BAMONA
Verified date: Sep 06, 2010
Observation date: Jul 14, 1993
Submitted by: legacy.reporter (Gordon Pratt)
Region: San Bernardino County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Feb 01, 2010
Observation date: Sep 17, 1984
Submitted by: legacy.reporter (J. Emmel, G. Pratt)
Region: San Bernardino County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Feb 01, 2010
Observation date: Sep 09, 1981
Submitted by: legacy.reporter (J. Emmel, G. Pratt)
Region: San Bernardino County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Feb 01, 2010
Observation date: Sep 10, 1978
Submitted by: legacy.reporter (J. Emmel, S. Mattoon)
Region: San Bernardino County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Feb 01, 2010
Observation date: Aug 31, 1993
Submitted by: legacy.reporter (Gordon Pratt)
Region: San Bernardino County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Feb 01, 2010
Observation date: Sep 10, 1984
Submitted by: legacy.reporter (J. Emmel, G. Pratt)
Region: San Bernardino County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Feb 01, 2010
Observation date: Sep 08, 1981
Submitted by: legacy.reporter (J. Emmel, G. Pratt)
Region: San Bernardino County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Feb 01, 2010
Observation date: Oct 02, 1982
Submitted by: legacy.reporter (J. Emmel)
Region: San Bernardino County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Feb 01, 2010
Observation date: Sep 12, 1979
Submitted by: legacy.reporter (J. Emmel, G. Pratt)
Region: San Bernardino County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Feb 01, 2010
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