Size: Up to 1.5 inch wingspan

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Key ID features: Above, FW gray-brown with indistinct gray markings and 3-5 tiny hyaline (glassy, translucent) spots on FW. Female FW usually more boldly patterned, but less so than Propertius. HW gray-brown with vague light spots.  Below dark brown with light spots and hyaline spots on FW, small vague spots on HW.

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Similar species: Propertius is larger, and usually more strongly marked. When fresh, Pacuvius has brown patches on FW, otherwise look for tibial tufts on hindlegs (Persius has them, Pacuvius does not).

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Host plant: Pea family species, including lupines (Lupinus), Thermopsis, Astragalus, and Lotus.

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Habitat: Open sunny meadows, roadsides and hillsides. 

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Range:  Cascade Range, Willamette Valley, much of Coast Range, Ochoco Mtns, Blue Mtns, Wallowa Mtns, Siskiyou Mtns, Klamath Mtns.

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Season: Mid-April to mid-August

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Abundance: Common 

 

Conservation Status: Secure