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Montana Field Guide

Montana Field Guides

A Dart Moth - Euxoa inconcinna

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Native Species

Global Rank: GNR
State Rank: SNA
(see State Rank Reason below)


Agency Status
USFWS:
USFS:
BLM:


 




State Rank Reason (see State Rank above)
The current range represented by detections reported to Moth Photographers Group, Bug Guide, and iNaturalist, this species seems likely native to areas south of Montana (closest detections in Colorado). The species was captured here and Mat Seidensticker had a Crambidae expert confirm ID by photo. The capture site was rural and doesn't point to an obvious way the individual might have been transported. The specimen is held at Colorado State University. It's not ruled out that this specimen may be E. auxiliaris. Until further investigation, we're going with the initial ID, but loading it with uncertainty.
 
General Description
Shropshire and Tallamy (2025) provide a list, with synonymies, of 13,055 described native, exotic, and occasional straying Lepidoptera species of North America, north of Mexico; known but undescribed taxa, taxa with unresolved taxonomy, and excluded species are also included. The main manuscript includes links to supplementary materials, including a reference list for Lepidoptera of North America north of Mexico, and a filterable spreadsheet with information on taxonomy, synonymy, size ranges of species, distribution by state, province, and country with references, and host-plant Family and Genus associations with references.

Range Comments
Shropshire and Tallamy (2025) provide a link to a supplemental filterable spreadsheet with information on distribution by state, province, and country with references for all Lepidoptera species of North America, north of Mexico.

Observations in Montana Natural Heritage Program Database
Number of Observations: 1

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density

Recency

 

(Observations spanning multiple months or years are excluded from time charts)



Habitat
Shropshire and Tallamy (2025) provide a link to a supplemental filterable spreadsheet with information on host-plant Family and Genus associations with references for all Lepidoptera species of North America, north of Mexico.


References
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Citation for data on this website:
A Dart Moth — Euxoa inconcinna.  Montana Field Guide.  .  Retrieved on , from