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Propertius duskywing

W Boundary Rd, Lane Co, April 26 - female


Erynnis propertius

Size: Up to 1.75 inch wingspan

Key ID features: Our largest duskywing. Above, FW gray-brown with frosted bands and spots, 3-6 hyaline (glassy, translucent) spots on FW. FW often appears banded, especially in females. HW plainer gray-brown sometimes with vague light spots.  Below brown with light spots and hyaline spots on FW, few to no small vague spots on HW.

Similar species: Other duskywings are smaller, and generally less boldy marked.

Host plant: Oak species, especially Oregon White Oak (Quercus garryana), and golden chinkapin (Chrysolepis chrysophylla) at higher elevations.

Habitat: Open areas near oaks or chinkapin. 

Range:  Western Oregon from Cascade Crest to crest of Coast Range.

Season: Late March to mid-July

Abundance: Common 


Conservation Status: Secure 

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