Plebejus saepiolus insulanus Blackmore, 1920

Vancouver Island breenish blue, Vancouver Island blue, Island blue



Taxonomy & Nomenclature



Conservation Status


Last record: 1979 (GOIRIG, 2007:iv, 1, 3, 5, 8, 10)



Vancouver Island (southern/southeastern), British Columbia, Canada


Biology & Ecology







Kondla and C. Guppy (2002),
Tax. Rep. Int. Lepid. Surv. 3(6): figs. 3 d



Original scientific description:

Blackmore, Ernest Henry. (1920). The Lycaenidae of British Columbia. Proceedings of the Entomological Society of British Columbia 14(syst. sen): 5-11, 1 pl.

Other references:

Blackmore, Ernest Henry. (1923). Two new races of the genus Plebejus Linn, from British Columbia. Canadian Entomologist 55(4): 98-100.

COSEWIC. (2012). COSEWIC status appraisal summary on the Island Blue Plebejus saepiolus insulanus in Canada. Committee on the Status of Endangered Wildlife in Canada. Ottawa. x pp.

Garry Oak Invertebrates Recovery Implementation Group. (2007). Recovery strategy for the Greenish Blue insulanus subspecies (Plebejus saepiolus insulanus) in British Columbia. Prepared for the B.C. Ministry of Environment, Victoria, BC. 13pp.

Guppy. C. S. (2003). Island Blue (Plebejus saepiolus insulanus) inventory of the mountains of southern Vancouver Island. BC Ministry of Water, Land, and Air Protection, Vancouver. 25 pp.

Hinchliff, J. (1994). An atlas of Oregon butterflies. The Evergreen Aurelians. Corvallis, OR. i–v, 1–176, base map.

Jones, L. (1951). An annotated check list of the Macrolepidoptera of British Columbia. Entomol. Soc. B.C. Occas. Pap. 1: i–v, i–ii, 1–148.

Miskelly, J. (2007). 2007 Surveys for Taylor’s Checkerspot (Euphydryas editha taylori Edwards 1888) [Lepidoptera: Nymphalidae] and Island Blue (Plebejus saepiolus insulanus Blackmore 1919) [Lepidoptera:Lycaenidae] butterflies on Observatory Hill. Natural Resources Canada, Victoria. 17 pp.

Parks Canada Agency. 2008. Recovery Strategy for the Island Blue (Plebejus saepiolus insulanus) in Canada. Species at Risk Act Recovery Strategy Series. Parks Canada Agency, Ottawa. 30 pp.

Pelham, J. P. (2008). A catalogue of the butterflies of the United States and Canada with a complete bibliography of the descriptive and systematic literature. The Journal of Research on the Lepidoptera. Volume 40. 658 pp.


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