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Close-up photo of live adult Blue Copper butterfly

Ditch Cr Rd, Morrow Co, July 7 - male

Blue Copper

Tharsalea heteronea


AKA Lycaena heteronea

Size: 1.25 - 1.5 inches wingspan

Key ID features:  Male above bright blue with black veins, black border and white fringe. Female above blueish gray with small black spots.   Female HW below white with light spots; FW below with black spots. Male similar below but with lighter or no spots on HW.

Similar species:  Male is larger and faster-flying than similar blues.  Female somewhat similar to Ruddy Copper, which has orange zigzag above and orange wash below.


Host plant: Buckwheat (Eriogonum) species.

Habitat: High sagelands, grasslands, montane and subalpine slopes and ridges, canyons and plateaus.

Range: Cascade Mtns and eastern Oregon except Columbia River drainage in Gilliam, Morrow and Umatilla counties.

Season: Early May to early September

Abundance: Common


Conservation Status: Secure

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