Montana Field Guide

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Home - Other Field Guides
- Kingdom - Animals - Animalia
  - Phylum - Spiders, Insects, and Crustaceans - Arthropoda
    - Class - Insects - Insecta
      - Order - Butterflies / Moths - Lepidoptera
        
        Family - Owlet Moths / Miller Moths - Noctuidae
        
        Species - Brown Arches Moth - Lacinipolia stricta

Brown Arches Moth - Lacinipolia stricta

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Native Species

Global Rank: GNR
State Rank: SNR

Agency Status
USFWS:
USFS:
BLM:

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General Description

The Lacinipolia stricta forewing is dark brown in the median area, and paler yellowish-brown in the basal and subterminal areas. The terminal area is dark brown mixed with black. The reniform spot is pale brown, angular, with a conspicuous thick white outline. The hindwing is dirty brownish-gray with a pale yellowish terminal line and fringe (Powell and Opler, 2009).

Range Comments

Lacinipolia stricta ranges from British Columbia to California, east to Utah, and north to Alberta (Powell and Opler, 2009).

Observations in Montana Natural Heritage Program Database

Number of Observations: 41

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Relative Density

Recency

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

Stewardship Responsibility

References

Literature Cited AboveLegend: View Online Publication
- Powell, J.A. and P.A. Opler. 2009. Moths of Western North America. University of California Press, Berkeley, CA. 369 pp.
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Citation for data on this website:
Brown Arches Moth — Lacinipolia stricta. Montana Field Guide. Montana Natural Heritage Program. Retrieved on October 31, 2025, from https://FieldGuide.mt.gov/speciesDetail.aspx?elcode=IILEYJB310