Moth Photographers Group – Eucosma offectalis

Digital Guide to Moth Identification

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Tortricidae

51a0823 – 3005 Eucosma offectalis (Hulst, 1886)

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Distribution Data for Eucosma offectalis

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Larva and Host Plants:	Host familiy: Asteraceae Fabaceae. Host genera: Artemisia Oxytropis Senecio. Notes: roots (Powell & Opler 2009); Artemisia (?) (Powell & Opler 2009). (Shropshire & Douglas 2025)
Similar Species:	Pinned specimens of related species. (Hint: select View by Region on the related species page.)
Synonymy:	offectalis (Hulst, 1886) (Crambus) - MONA 1983: 3005; TL: Colorado. obliterana (Walsingham, 1895) (Semasia); TL: Arizona.
Taxonomic Notes:	Eucosma offectalis: Formerly placed in the genus Phaneta, Gilligan et al. (2013), Zootaxa, 3746(2): 301-337.

References (Caution: DNA barcoding at BOLD provides evidence of relatedness, not proof of identification; some BOLD specimens shown may not be sequenced.)

Barcode of Life (BOLD) - Caution: Identifications often erroneous; DNA barcode provides evidence of relatedness, not proof of identification; many specimens not sequenced.
Gilligan, T.M. & D.J. Wright, 2013. Revised world catalogue of Eucopina, Eucosma, Pelochrista, and Phaneta (Lepidoptera: Tortricidae: Eucosmini). Zootaxa, 3746(2): 301-337. (PDF)
Hulst, G.D., 1886. Descriptions of new Pyralidae. Transactions of the American Entomological Society, 13: 166.
Powell, J. A. & P. A. Opler, 2009. Moths of Western North America, Pl. 15.13f; p. 133. Book Review and ordering
Shropshire, K.J. & D.W. Tallamy, 2025. Lepidoptera of North America, north of Mexico: an annotated list containing geographic ranges and host-plant records. ZooKeys, 1261: 101-113; Suppl. 1. (PDF or read online)
Species Page at BugGuide.Net
Species Page at iNaturalist
Walsingham, L.T.d.G., 1895. New species of North American Tortricidæ. Transactions of the Entomological Society of London, 1895: 513.
Wright, D.J. & T.M. Gilligan, 2015. Eucosma Hübner of the contiguous United States and Canada (Lepidoptera: Tortricidae: Eucosmini). The Moths of America north of Mexico, Fascicle 9.4: 1-256, order.

Moth Photographers Group at the Mississippi Entomological Museum at the Mississippi State University

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