E-Fauna BC: Electronic Atlas of the Wildlife of British Columbia

Hemaris thetis (Boisduval, 1855)
Rocky Mountain Clearwing
Family: Sphingidae
Photo of species

© Libby & Rick Avis  Email the photographer   (Photo ID #9828)

E-Fauna BC Static Map
Distribution of Hemaris thetis in British Columbia
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Until 2009, this species was not recognized in BC. However, Schmidt (2009) showed that all specimens previously thought to be Hemaris diffinis, were actually H. thetis. Inhis paper, he says:

"Western North American populations previously treated as Hemaris diffinis (Boisduval) are shown to be a distinct species, Hemaris thetis Boisduval), based on differences in habitus, genitalic morphology, mtDNA sequence variation and larval phenotype. Both species occur in strict sympatry at several localities in western Alberta without evidence of intergradation. Hemaris senta is a colour variant of H. thetis, and synonomized under the latter."

Avis (2014, pers. comm.) says: "You would only expect to find H. thetis in BC other than possibly in the Peace River." Reference:

Schmidt, B. Christian (2009). Hemaris thetis (Boisduval, 1855) (Sphingidae) is a Distinct Species. Journal of the Lepidopterists Society 63(2), 2009, 100-109.

Status Information

Origin StatusProvincial StatusBC List
(Red Blue List)
NativeSNRNo StatusNot Listed
BC Ministry of Environment: BC Species and Ecosystems Explorer--the authoritative source for conservation information in British Columbia.

Synonyms and Alternate Names

Hemaris senta (Strecker, 1878)

Additional Photo Sources

General References

Recommended citation: Author, Date. Page title. In Klinkenberg, Brian. (Editor) 2021. E-Fauna BC: Electronic Atlas of the Fauna of British Columbia [efauna.bc.ca]. Lab for Advanced Spatial Analysis, Department of Geography, University of British Columbia, Vancouver. [Accessed: 2023-12-02 12:39:40 AM]
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