Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

Sierra Sulphur
Colias behrii W.H. Edwards, 1866
Family: Pieridae
Subfamily: Coliadinae
Identification: Upper surface of male dull green with dark border; pale hindwing cell spot. Female greenish-yellow with dark diffuse border. Underside of both sexes green.
Wing Span: 1 3/8 - 1 5/8 inches (3.5 - 4.2 cm).
Life History: Males patrol low to the ground for females.
Flight: One flight from July-August.
Caterpillar Hosts: Low blueberries (Vaccinium species) in the heath family (Ericaceae) and gentian (Gentiana newberryi).
Adult Food: Flower nectar.
Habitat: Subalpine and alpine meadows, usually above 9000 feet.
Range: Isolated range in California\'s Sierra Nevada from Tuolumne County south to Tulare County.
Conservation: Prevent damage to meadow habitats by trampling or grazing.
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: Restrict access to major colonies in Tuolumne and Tioga meadows, Yosemite National Park.
Comments: NULL

Verified Sightings

Displaying 1 - 24 of 79 verified sightings
Observation date: Aug 30, 2019
Submitted by: Robert Gorman
Region: Mono County, California, United States
Verified by: Ken Davenport
Verified date: Sep 26, 2019
  Details
Observation date: Jul 15, 2018
Submitted by: Robert Gorman
Region: Mono County, California, United States
Verified by: Ken Davenport
Verified date: Jul 19, 2018
  Details
Observation date: Jul 14, 2018
Submitted by: Robert Gorman
Region: Mono County, California, United States
Verified by: Ken Davenport
Verified date: Jul 17, 2018
  Details
Observation date: Aug 03, 2016
Submitted by: TPeterson
Region: Tuolumne County, California, United States
Verified by: Ken Davenport
Verified date: Aug 12, 2016
  Details
Observation date: Jul 04, 2012
Submitted by: eal79
Region: Tulare County, California, United States
Verified by: Ken Davenport
Verified date: Jul 17, 2012
  Details
Observation date: Jul 03, 2012
Submitted by: eal79
Region: Tulare County, California, United States
Verified by: Ken Davenport
Verified date: Jul 16, 2012
  Details
Observation date: Jul 02, 2012
Submitted by: eal79
Region: Tulare County, California, United States
Verified by: Ken Davenport
Verified date: Jul 16, 2012
  Details
Observation date: Jun 26, 2012
Submitted by: Ken Davenport (Ken Davenport)
Region: Mono County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 01, 2012
  Details
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
  Details
Observation date: Sep 06, 1998
Submitted by: legacy.reporter (Doug Taron)
Region: Tuolumne County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 01, 2012
  Details
Observation date: Sep 06, 1998
Submitted by: Doug Taron
Region: Tuolumne County, California, United States
Verified by: Ken Davenport
Verified date: Oct 18, 2011
  Details
Observation date: Aug 15, 1962
Submitted by: legacy.reporter (unknown)
Region: Madera County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: May 01, 2011
  Details
Observation date: Jul 29, 2007
Submitted by: legacy.reporter (David Shaw)
Region: Tuolumne County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: May 01, 2011
  Details
Observation date: unknown
Submitted by: BAMONA
Region:
Verified by: BAMONA
Verified date: Sep 06, 2010
  Details
Observation date: Aug 27, 1966
Submitted by: legacy.reporter (R. Holland)
Region: Inyo County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 06, 2010
  Details
Observation date: Aug 07, 1997
Submitted by: legacy.reporter (Jeffrey Glassberg)
Region: Tuolumne County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 05, 2010
  Details
Observation date: Aug 04, 1922
Submitted by: legacy.reporter (J. A. Comstock)
Region: Mono County, California, United States
Verified by: legacy.verifier (J. A. Comstock)
Verified date: Jan 04, 2010
  Details
Observation date: Aug 06, 1970
Submitted by: legacy.reporter (James R. Mori)
Region: Mono County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Dec 17, 2009
  Details
Observation date: Aug 03, 1968
Submitted by: legacy.reporter (James R. Mori)
Region: Mono County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Dec 17, 2009
  Details
Observation date: Aug 15, 1957
Submitted by: legacy.reporter (J. W. Tilden)
Region: Tuolumne County, California, United States
Verified by: legacy.verifier (Garth & Tilden)
Verified date: Oct 20, 2009
  Details
Observation date: Aug 04, 1958
Submitted by: legacy.reporter (Oakley Shields)
Region: Mariposa County, California, United States
Verified by: legacy.verifier (Garth & Tilden)
Verified date: Oct 20, 2009
  Details
Observation date: Aug 16, 1957
Submitted by: legacy.reporter (J. W. Tilden)
Region: Tuolumne County, California, United States
Verified by: legacy.verifier (Garth & Tilden)
Verified date: Oct 20, 2009
  Details
Observation date: Aug 20, 1958
Submitted by: legacy.reporter (Oakley Shields)
Region: Tuolumne County, California, United States
Verified by: legacy.verifier (Garth & Tilden)
Verified date: Oct 20, 2009
  Details
Observation date: Aug 06, 1959
Submitted by: legacy.reporter (Oakley Shields)
Region: Mono County, California, United States
Verified by: legacy.verifier (Garth & Tilden)
Verified date: Oct 20, 2009
  Details