Butterflies and Moths of North America

collecting and sharing data about Lepidoptera

Cassiope Blue
Plebejus cassiope (J. Emmel & T. Emmel, 1998)
Family: Lycaenidae
Subfamily: Polyommatinae
Identification: Upperside of male metallic, pale gray-blue, female dark brown. Underside dark brown with pattern of black spots in white field on hindwing. Forewing submarginal black spots sq1uarish or oblong. Hindwing usually has black discal spot present.
Wing Span: 3/4 - 1 inches (2.1 - 2.5 cm).
Life History: Eggs are laid singly on leaves, bracts, or sepals of the host plant. Caterpillars or chrysalids hibernate.
Flight: One flight from early July to September.
Caterpillar Hosts: Cassiope mertensiana.
Adult Food: Flower nectar.
Habitat: Lush subalpine slopes.
Range: Limited range in California in Trinity Alps and near crest of Sierra Nevada.
Conservation: Study conservation needs, if any, of subspecies kelsoni Emmel and Emmel in Trinnity Alps.
NCGR: G3,G4 -Very rare or local throughout its range or found locally in a restricted range OR Apparently secure globally, though it might be quite rare in parts of its range, especially at the periphery. Subspecies kelsoni is rank 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).
Management Needs: Study conservation needs and implement if necessary.
Comments: NULL
Get your BAMONA Gear!

Visit the BAMONA Shop

Hoodies and t-shirts in two designs!


Advertise with us!

Do you have a product or service that you think would interest BAMONA users? If you would like to advertise on this website, contact us by email, or use the contact form and select the "Advertising" category.


Verified Sightings

Displaying 1 - 24 of 34 verified sightings
Observation date: Aug 17, 2011
Submitted by: Ken Davenport (Ken Davenport)
Region: Mono County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: May 01, 2011
  Details
Observation date: Jul 15, 2001
Submitted by: legacy.reporter (Jim Brock)
Region: Mono County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: May 01, 2011
  Details
Observation date: Aug 25, 1945
Submitted by: legacy.reporter (unknown)
Region: Mono County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: May 01, 2011
  Details
Observation date: Jul 15, 2001
Submitted by: legacy.reporter (Jim Brock)
Region: Mono County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Dec 31, 2010
  Details
Observation date: Aug 25, 2045
Submitted by: legacy.reporter (unknown)
Region: Mono County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Dec 31, 2010
  Details
Observation date: Jul 19, 1988
Submitted by: legacy.reporter (John F. Emmel)
Region: El Dorado County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 07, 2010
  Details
Observation date: Jul 21, 1968
Submitted by: legacy.reporter (J. Emmel & O. Shields)
Region: Siskiyou County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 07, 2010
  Details
Observation date: Jul 24, 1990
Submitted by: legacy.reporter (Richard Kelson)
Region: Siskiyou County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 07, 2010
  Details
Observation date: Jul 25, 1990
Submitted by: legacy.reporter (Richard Kelson)
Region: Siskiyou County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 07, 2010
  Details
Observation date: Aug 03, 2003
Submitted by: legacy.reporter (Susan Steele)
Region: Tuolumne County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Oct 21, 2009
  Details
Observation date: Jul 30, 1993
Submitted by: legacy.reporter (John F. Emmel)
Region: Mono County, California, United States
Verified by: legacy.verifier (John F. Emmel)
Verified date: Oct 21, 2009
  Details
Observation date: Jul 24, 1993
Submitted by: Ken Davenport (Ken Davenport)
Region: Mono County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Oct 21, 2009
  Details
Observation date: Jul 15, 1989
Submitted by: legacy.reporter (7/15/1989)
Region: Tuolumne County, California, United States
Verified by: legacy.verifier (J. F. Emmel & O. Shields)
Verified date: Oct 21, 2009
  Details
Observation date: Jul 26, 1997
Submitted by: legacy.reporter (John F. Emmel)
Region: Mono County, California, United States
Verified by: legacy.verifier (John F. Emmel)
Verified date: Oct 21, 2009
  Details
Observation date: Aug 16, 1975
Submitted by: Ken Davenport (Ken Davenport)
Region: Mono County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Oct 21, 2009
  Details
Observation date: Aug 12, 2006
Submitted by: legacy.reporter (P. Opler, K. Davenport, H. Grisham, R. Patterson)
Region: Mono County, California, United States
Verified by: legacy.verifier (Ken Davenpoprt)
Verified date: Oct 21, 2009
  Details
Observation date: Aug 02, 1981
Submitted by: legacy.reporter (Robert L. Langston)
Region: Mono County, California, United States
Verified by: legacy.verifier (Robert L. Langston)
Verified date: Oct 21, 2009
  Details
Observation date: Jul 07, 2001
Submitted by: legacy.reporter (Herberte Clarke)
Region: Tuolumne County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Oct 21, 2009
  Details
Observation date: Jul 31, 1999
Submitted by: legacy.reporter (Jack Levy)
Region: Mono County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Oct 21, 2009
  Details
Observation date: Jul 22, 1993
Submitted by: Ken Davenport (Ken Davenport)
Region: Mono County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Oct 21, 2009
  Details
Observation date: Aug 15, 2006
Submitted by: rickypatterson (Ricky Patterson)
Region: Mono County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Oct 21, 2009
  Details
Observation date: Aug 08, 1981
Submitted by: legacy.reporter (Robert L. Langston)
Region: Tuolumne County, California, United States
Verified by: legacy.verifier (Robert Langston)
Verified date: Oct 21, 2009
  Details
Observation date: Jul 19, 1981
Submitted by: legacy.reporter (Robert L. Langston)
Region: Mono County, California, United States
Verified by: legacy.verifier (Robert L. Langston)
Verified date: Oct 21, 2009
  Details
Observation date: Sep 07, 2009
Submitted by: Ken Davenport (Ken Davenport)
Region: Mono County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Oct 13, 2009
  Details

Advertisement