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Digital Guide to Moth Identification

Tortricidae
51a0305.1 – 3640   Choristoneura occidentalis Freeman, 1967
             Western Spruce Budworm
© Libby & Rick Avis © John Davis
Distribution: Type locality: Yakima Indian Reserve, Klickitat Co., WA.
Description/
Field Marks:
See TortAI species page at idtools.org
Genitalia: See TortAI species page at idtools.org
Similar Species:
  • Choristoneura fumiferana complex: The Choristoneura fumiferana complex includes C. carnana, occidentalis [freemani], fumiferana, lambertiana, orae, pinus, retiniana.
  • Pinned specimens of related species. (Hint: select View by Region on the related species page.)
Synonymy: Choristoneura occidentalis Freeman, 1967
Choristoneura freemani Razowski, 2008
Choristoneura biennis Freeman, 1967
Taxonomic Notes: Choristoneura occidentalis Freeman, 1967 is reinstated as the valid name of this species following Brunet et al. (2017), overturning the replacement name Choristoneura freemani Razowski, 2008 proposed to resolve the homonymy of C. occidentalis Walsinham, 1891.
This species includes as a subspecies 3641 Choristoneura biennis Freeman, 1967 in Brunet et al. (2017), Systematic Entomology. 42: 317-328.
References
  • Barcode of Life (BOLD) - Caution: Some specimens shown may not be sequenced. DNA barcode provides evidence of relatedness not proof of identification.
  • Brunet, B.M., G.S. Blackburn, K. Muirhead, L.M. Lumley, B. Boyle, R.C. Lévesque, M. Cusson, F.A.H. Sperling, 2017. Two's company, three's a crowd: new insights on spruce budworm species boundaries using genotyping-by-sequencing in an integrative species assessment (Lepidoptera: Tortricidae). Systematic Entomology, 42: 317-328.
  • Gilligan, T. M. & M. E. Epstein, 2014. Tortricids of Agricultural Importance to the United States (TortAI). Identification Technology Program (ITP), USDA/APHIS/PPQ/CPHST, Fort Collins, CO, species page at idtools.org.
  • Powell, J. A. & P. A. Opler, 2009. Moths of Western North America, Pl. 18.49m, .50m, .51f; p. 151. Book Review and ordering
  • Razowski, J., 2008. Tortricidae (Lepidoptera) from South Africa. 6: Choristoneura Hübner and Procrica Diakonoff. Polskie Pismo Entomologiczne, 77: 245-254.
  • Species Page at BugGuide.Net
Choristoneura occidentalis
© Libby & Rick Avis
Choristoneura occidentalis
© Ian Maton
Choristoneura occidentalis
CalPhotos – © Jerry Powell
Choristoneura occidentalis
CalPhotos – © Jerry Powell
Choristoneura occidentalis
CalPhotos – © Jerry Powell
Choristoneura occidentalis
25mm – © Jim Vargo
Choristoneura occidentalis
25mm – © Mississippi Entomological Museum
Choristoneura occidentalis
25mm – © Mississippi Entomological Museum
Choristoneura occidentalis
26mm – © Mississippi Entomological Museum
Choristoneura occidentalis
26mm – © U. S. National Museum
Choristoneura occidentalis
24mm – © U. S. National Museum
Choristoneura occidentalis
24mm – © U. S. National Museum

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