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Montana Field Guide

Montana Field Guides

Transparent Quaker Moth - Orthosia transparens

Native Species

Global Rank: GNR
State Rank: SNR

Agency Status


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General Description
The Transparent Quaker Moth (Orthosia transparens) wingspan is about 37 mm. The forewing is falcate, light red to dark red-brown with a black reniform spot. The hindwing is dark gray to black. The males have filiform antennae (USGS 2006).

The Transparent Quaker Moth flies in early spring (USGS 2006).

Range Comments
The Transparent Quaker Moth is common in dry forests in the Pacific West (USGS 2006).

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
Larvae feed on the foliage of madrone (Arbutus menziesii) and Rhododendron (USGS 2006).

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Citation for data on this website:
Transparent Quaker Moth — Orthosia transparens.  Montana Field Guide.  .  Retrieved on , from