Euxoa bochus

Adults can be distinguished from other Euxoa species by a combination of geographic range, flight period (mid-July to mid-October), and wing morphology consistent with the genus. Definitive species-level identification of Euxoa moths typically requires examination of genitalia or reference to regional keys.

Found in diverse environments across western North America including open fields, grasslands, and montane areas. Specific microhabitat preferences are not well documented.

Western North America: from Vancouver Island, British Columbia south to southern Utah and northern New Mexico; east to central Colorado, Wyoming, and the Cypress Hills area of southwestern Saskatchewan. Also present in Manitoba.

Adults are on wing from mid-July to mid-October. One generation per year.

Univoltine (one generation per year). Overwintering stage not explicitly documented in available sources.

• Euxoa auxiliarisSympatric in western North America and shares similar habitat; distinguished by different adult flight period (late spring to early summer) and known larval ecology as a major agricultural pest

• noctuid moth
• western North America
• univoltine
• summer-fall flight

• BugGuide
• Wikipedia
• GBIF taxonomy match
• iNaturalist taxon
• NCBI Taxonomy
• Catalogue of Life
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