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Digital Guide to Moth Identification

Notodontidae
930103.1 – 8010.1   Oedemasia salicis (Edwards, 1877)
             Western Red-humped Caterpillar

© Rich Schilk
Distribution: Canada: southern BC; USA: WA and ID south to southeastern CA - Miller et al. (2021)
Type locality (salicis): Mt. Shasta, CA.
Type locality (riversii): Napa Valley, CA.
Similar Species:
  • Oedemasia concinna (Smith, 1797) is separated by range with potential overlap in the Pacific Northwest.
  • Pinned specimens of related species. (Hint: select View by Region on the related species page.)
Synonymy: Heterocampa salicis Edwards, 1876
Dryocampa riversii Behr, 1890
Taxonomic Notes: Oedemasia salicis (Edwards, 1877), rev. stat. in Miller et al. (2021), formerly treated as a subspecies of 8010 Oedemasia concinna (Smith, 1797) includes as a synonym O. riversii (Behr, 1890).
References
  • Barcode of Life (BOLD) - Caution: Some specimens shown may not be sequenced. DNA barcode provides evidence of relatedness not proof of identification.
  • Behr, H.H., [1890]. Entomological contributions. Proceedings of the California Academy of Sciences, ser. 2,2: 94.
  • Edwards, H., 1877. Pacific Coast Lepidoptera, No. 18. Notes on the case-bearing moths, (Psyehidae,) with notices of Californian species. Proceedings of the California Academy of Sciences, 7: 121.
  • Miller, J.S., D.L. Wagner, P.A. Opler & J.D. Lafontaine, 2021. Noctuoidea, Notodontidae (Part 2, Conclusion): Heterocampinae, Nystaleinae, Dioptinae, Dicranurinae. The Moths of America north of Mexico, Fascicle 22.1B: 142; pl. A-17, figs. 28, 29; pl. 58, fig. 5 (♂ gen.); pl. 72, figs. 12 (♂ sternum 8); pl. 86, fig. 5 (♀ gen.); pl. L-17, fig. 10 (larva). - order
  • Species Page at BugGuide.Net
Oedemasia salicis
© Rich Schilk
Oedemasia salicis
LG(cc) CBG Photog. Grp. (USNM)
Oedemasia salicis
© Andrew Lazere LG
on apple
Oedemasia salicis
© Andrew Lazere LG
on apple
Oedemasia salicis
© Eleanor Caputo LG
on walnut
Oedemasia salicis
© Peter Bryant LG

Oedemasia salicis
© Eleanor Caputo LG
on walnut
Oedemasia salicis
© Eleanor Caputo LG
on walnut

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