Euxoa simona
McDunnough, 1932
cutworm moth, dart moth
Euxoa simona is a of or dart moth in the Noctuidae, described by James Halliday McDunnough in 1932. It belongs to the large Euxoa, which contains numerous similar-looking species of owlet moths. The species is known from North America, with confirmed records from the Canadian provinces of Alberta and Saskatchewan. Like other Euxoa species, it is and attracted to light sources.

Pronunciation
How to pronounce Euxoa simona: /juːkˈsoʊə sɪˈmoʊnə/
These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.
Identification
Euxoa simona is one of many similar-looking within the Euxoa, making field identification challenging without close examination. The genus is characterized by stout-bodied with dull, earth-toned coloration—typically gray, brown, or black with various patterns of lines and spots on the forewings. Species-level identification within Euxoa generally requires examination of genitalia or other microscopic features. The MONA (Moths of North America) Hodges number for this species is 10729, which can assist in referencing technical literature.
Images
Distribution
Euxoa simona is found in North America. Confirmed distribution records include the Canadian provinces of Alberta and Saskatchewan. The full extent of its range within North America remains incompletely documented.
Behavior
Similar Taxa
- Euxoa auxiliaris (Army Cutworm)Similar appearance and preferences; however, E. auxiliaris is a notorious agricultural pest with a much broader documented range and distinctive involving mass to alpine areas. E. simona lacks these documented pest characteristics.
- Other Euxoa speciesThe Euxoa contains numerous cryptic that are difficult to distinguish visually. E. simona is distinguished by genitalia and geographic distribution rather than obvious external features.
More Details
Taxonomic history
Euxoa simona was described by Canadian entomologist James Halliday McDunnough in 1932. McDunnough was a prolific describer of North American Lepidoptera, particularly Noctuidae, and his work remains foundational for the of the group.
Data limitations
Euxoa simona is among the many Noctuidae for which published biological information is sparse. Most Euxoa species receive attention only when they become agricultural pests; species without pest status, such as E. simona, are often documented only by and scattered collection records.
Sources and further reading
- BugGuide
- Wikipedia
- GBIF taxonomy match
- iNaturalist taxon
- NCBI Taxonomy
- Bug Eric: Winter 'pillars
- How Army Cutworm Moths Bounce Between Midwest Heat and Alpine Cool
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- Call Me Invasive: New Evidence Confirms the Status of the Giant Asian Mantis in Europe | Blog
- Bug Eric: July 2019
- Bug Eric: March 2009