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Digital Guide to Moth Identification

Noctuidae 933309 – 10731   Euxoa auxiliaris (Grote, 1873)              Army Cutworm

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Distribution: Suggested by Heppner as a species straying into, but not breeding in, Florida. Larva and Host Plants: Host familiy: Amaranthaceae[Chenopodiaceae] Alliaceae[Liliaceae] Apiaceae Asteraceae Brassicaceae Cactaceae Fabaceae Grossulariaceae Linaceae Malvaceae Poaceae Polygonaceae Ranunculaceae Rosaceae Sapindaceae[Acerac..  Host genera: Acer Agrostis Allium Apium Armoracia Avena Balsamorhiza Beta Brassica Capsella Cirsium Delphinium Descurainia Elymus Fragaria Geum Gossypium Helianthus Hordeum Linum Lupinus Medicago Onobrychis Opunti...  Notes: soil-surface herbaceous vegetation with preference grasses Poaceae (Crabo et al 2014); polyphagous on herbs (Poole 1989); polyphagous on field crops (Evans 1952); Detritophagous -on cereal (Zhang 1994...  (Shropshire & Douglas 2025) Similar Species: Pinned specimens of related species. (Hint: select View by Region on the related species page.) Synonymy: auxiliaris (Grote, 1873) (Agrotis) - MONA 1983: 10731 agrestis (Grote, 1877) (Agrotis) flexilis (Smith, 1890) (Agrotis) introferens (Grote, 1875) (Agrotis) montanus (Cook, 1930) (Chorizagrotis) tegularis (Draudt, 1924) ([unknown]) tegularis (Strand, 1916) (Agrotis)

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. Lafontaine, J. D., 1987. Moths of America North of Mexico, Fascicle 27.2: p. 30; pl. 1.6-8. order or free PDF Powell, J. A. & P. A. Opler, 2009. Moths of Western North America, Pl. 57.8f, 57.10f; p. 310. 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 E. H. Strickland Museum Species Page at Pacific Northwest Moths Species Page at iNaturalist Species page at Moths of North Dakota.

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