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Digital Guide to Moth Identification

890122 – 7811   Sphinx luscitiosa Clemens, 1859
             Clemens' Sphinx
Distribution Data for Sphinx luscitiosa
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Distribution: Uncommon to rare. Found in Canada from Nova Scotia to Alberta, and in the Yukon. In the US, it is found south to New Jersey, Illinois and Utah.
and Size:
One brood, flight period in June and July. Wingspan 57 - 78 mm.
Larva and
Host Plants:
Foodplants include poplar, willow and birch. Green hornworm with 7 pairs of oblique lateral lines similar to S. gordius except that the horn has a black lateral line.
Field Marks:
  • Forewing yellowish gray in males, pale gray with yellow tint in females.
  • Dark border on outer margin widens towards inner margin.
  • Hindwing deep yellow in males, pale yellow in females: both sexes have a wide black border.
Similar Species:
  • Pinned specimens of related species. (Hint: select View by Region on the related species page.)
Synonymy: Sphinx luscitiosa Clemens, 1859
Sphinx benjamini Clark, 1932
Sphinx bombax Barnes & Benjamin, 1927
Sphinx borealis Clark, 1931
Sphinx una Skinner, 1903
  • Barcode of Life (BOLD) - Caution: Some specimens shown may not be sequenced. DNA barcode provides evidence of relatedness not proof of identification.
  • Covell Field Guide p.36; Pl. 4(2, male).
  • Hodges, R. W., 1971. Moths of America North of Mexico, Fascicle 21:p. 68; pl. 5.10, 13, 16. order or free PDF
  • Species Page at Bill Oehlke's moth website - Sphinx luscitiosa
  • Species Page at BugGuide.Net
  • Species Page at E. H. Strickland Museum
  • Species Page at Mass Moths
  • Species Page at Pacific Northwest Moths
  • Tuttle, J. P., 2007. Hawk Moths of North America: p. 88; pl. 6.1, 4.
  • Wagner, D. L., (2005). Caterpillars of Eastern North America, p. 260.
Sphinx luscitiosa
Nelson Poirier
Sphinx luscitiosa
Nelson Poirier
Sphinx luscitiosa
Robin McLeod
Sphinx luscitiosa
70mm – Jim Vargo
Sphinx luscitiosa
Canadian National Collection LG

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