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Montana Field Guide

Montana Field Guides

Bronzed Cutworm Moth - Nephelodes minians

Native Species

Global Rank: G5
State Rank: SNR

Agency Status


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General Description
The Nephelodes minians wingspan is about 40 mm. The forewing ground color is extremely variable, and ranges from light tan/yellowish, to pinkish, rosy, rusty, grayish, or various shades of brown. A dark U-shaped band surrounds the reniform spot medially.

The Nephelodes minians larvae head is large, and is colored tan to honey. The larvae body is thick, dark brown with a bronzy sheen. There are three yellowish dorsal stripes that extend along body (Powell and Opler, 2009).

Nephelodes minians adults fly from July to October (Powell and Opler, 2009).

Range Comments
The Nephelodes minians ranges throughout North America except Florida (Powell and Opler, 2009).

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



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

Food Habits
The Nephelodes minians larvae feed on grasses, including cereal crops and corn (Powell and Opler, 2009).

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Citation for data on this website:
Bronzed Cutworm Moth — Nephelodes minians.  Montana Field Guide.  .  Retrieved on , from