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Close-up photo of adult Great Basin Fritillary butterfly

Mt Ashland Rd, Jackson Co, July 15 - ssp. matooni

Great Basin

Argynnis egleis


AKA Speyeria egleis

Size: Up to 2.25 inch wingspan

Key ID features:  Smallish. Varies significantly among subspecies especially below. Medium orange above with black veins, black shading near the body, black irregular lines inwardly, submarginal black spot band and black marking along margin like chain links, bolder on female. Below ground color of "disc" on HW generally light brown, with large silvery-white oval spots usually with darker halos or caps.

Similar species: Zerene and Callippe both have darker disc color below. 

Hostplant: Violet (Viola) species.

Habitat: Varies by ssp. in each region, including ridgetops, meadows, pumice flats and subalpine slopes. 

Range: Found in southern Cascades, Siskiyou Mtns, Klamath Mtns, Ochocos, and in Wallowas and northeastern Blue Mtns.

Season: Mid-June to early September.

Abundance: Common 


Conservation Status: Secure

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