Gallery Prev Next West Eugene Wetlands, Lane Co, July 25 - female Great Copper Tharsalea xanthoides AKA Lycaena xanthoides Size: 1.25- 1.75 inches wingspan ​ Key ID features: Large for a copper. May have very short tail. Female above gray-brown with tan patches, black spots, and orange lunules (series of crescent shapes) on the trailing edge of the HW. Male above gray-brown, with only a few small spots along HW trailing margin. Below HW grayish brown with black spots, submarginal white band, and pale zigzag orange line along VHW trailing margin. Female with bolder zigzag orange line along VHW trailing margin. Often has a noticeable though small tail. ​ Similar species: Edith's Copper is smaller, often with darker dorsal ground color, and VHW spots are larger and closer together . Edith's tend to have no tail or a tiny stub of a tail. Host plant: Dock (Rumex ) species are suspected. ​ Habitat: Grassy hillsides in the south, wet meadows in the Willamette Valley. ​ Range: South Siskiyou Mtns, southern Willamette Valley. ​ Season: Mid-June to early September ​ Abundance: Locally common Conservation Status: Secure throughout most of its range, but population in southern Willamette Valley is perilously small.

Gallery Prev Next Mt. Ashland Road, Jackson Co, July 9 - female Lilac-Bordered Copper Tharsalea nivalis AKA Lycaena nivalis Size: 1 - 1.25 inches wingspan ​ Key ID features: Male above brownish with orange zigzag line on trailing margin. Female above light orange with black spots and borders. HW below two-toned, creamy yellow next to the body, and lilac in the outer half, with vague zigzag orange line (colors brighter in female). ​ Similar species: Purplish lacks distinctive two-toned HW below. Other coppers have white or grayish undersides. Host plant: Knotweeds (Polygonum). ​ Habitat: Mountain meadows, openings in fir and pine forests . ​ Range: All of Oregon's mountains except Coast Range. ​ Season: Mid-May to late August ​ Abundance: Common Conservation Status: Secure

Gallery Prev Next Sand Cr, Klamath Co, June 25 - female Lustrous Copper Lycaena cupreus Size: 0.75- 1.25 inches wingspan ​ Key ID features: Above bold orange with bold black spots and borders, female with more and larger spots. Below HW gray or creamy gray with large black spots and orange submarginal line, sometimes segmented. FW below light orange with large black spots and grayish outer margin. ​ Similar species: Lustrous is deeper orange than other Oregon coppers with black spots above. Host plant: Dock (Rumex ) species are suspected. ​ Habitat: Wet and dry meadows, open areas along streams. ​ Range: South Cascade Mtns, Ochoco Mtns, Wallowa Mtns, Steens Mtn. ​ Season: Late May to late-August ​ Abundance: Locally common Conservation Status: Secure

Gallery Prev Next Box Canyon Meadows, Lane Co, July 9 Dreamy Duskywing Erynnis icelus Size: Up to 1.5 inch wingspan ​ Key ID features: Small for a Duskywing. Males have hump at leading edge of FW. Above, FW gray-brown with frosted band and spots, no hyaline (translucent) spots near FW tip as on other Duskywings. HW plainer gray-brown with vague light spots. Below brown with light spots and pale gray patch near FW tip. ​ Similar species: Other duskywings are larger, and have translucent hyaline spots on FW. ​ Host plant: Willows and aspens. ​ Habitat: Open meadows and road cuts, up to mid-elevations. ​ Range: Siskiyou Mtns, Cascade Range, Blue Mtns, Wallowa Mtns, northern Coast Range. ​ Season: Early April to late July ​ Abundance: Uncommon Conservation Status: Secure

Gallery Prev Next Williams Prairie, Crook Co, July 26 - male Ruddy Copper Tharsalea rubidus AKA Lycaena rubidus Size: 1.1 - 1.25 inches wingspan ​ Key ID features: Male above very bright coppery orange, with few small dark spots . Female above brownish gray orange with black spots, and submarginal spot band, often with orange submarginal zigzag line. Female HW below white with orange wash with very light spots; FW below light orange with black spots. Male similar below with lighter ground color. ​ Similar species: No other Oregon butterfly is as bright orange as the male. Female somewhat similar to Blue Copper, which lacks the orange zigzag above and the orange wash below. Host plant: Dock (Rumex ) species. ​ Habitat: Riparian habitast (near water), including wet montane meadows. ​ Range: Southeastern Oregon, and east of Cascade Mtns from Ochoco Mtns south. ​ Season: Mid-May to late August ​ Abundance: Common Conservation Status: Secure

Gallery Prev Next Mt Ashland Rd, Jackson Co, July 15 - ssp. matooni Great Basin Fritillary 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

Gallery Prev Next Catherine Cr Rd, Wallowa Co, July 8 Northern Blue Plebejus idas Size: 1.0 - 1.25 inch wingspan ​ Key ID features: Male deep violet-blue above with black marginal band and white fringe. Female brown above with scalloped orange marginal band, clearer and bolder on HW. Below, light bluish gray with black spots, with row of marginal spots that are black inwardly, then orange, and outwardly black with a patch of iridescent blue, lighter and less clear on FW. ​ Similar species: Male Acmon and Lupine Blues have orange band on HW above, and females of those species have no orange on FW above. Melissa Blue has brighter orange borders and bolder iridescent patches on HW below. Anna's Blues don't occur east of the Cascades in NE Oregon. ​ Host plant: May be using plants in the pea family and/or heath family . ​ Habitat: Moist, cool montane meadows and forest openings, and dry meadows among conifers. ​ ​ Range: Found from Ochocos to Wallowas and Blue Mtns in NE Oregon. ​ Season: Early June to late August ​ Abundance: Common Conservation Status: Secure

Gallery Prev Next Mtn Lakes Wilderness, Klamath Co, August 15 Queen Alexandra's Sulphur Colias alexandra Size: 2.0 - 2.8 inches wingspan ​ Key ID features: Larger than any other Oregon sulphur, with more pointed FW. Below HW discal spot is white (not pearly) with no satellite spot, often unrimmed. Below HW has heavy black overscaling, giving strong green cast. ​ Similar species: Clouded Sulphurs are smaller and have double ring around discal spot on HW below. Western Sulphurs are smaller and often have brighter pink wing borders. Pink-edged Sulphurs have more rounded wings, lack black overscaling below and have bright pink wing borders. Host plant: Various species in the pea family, especially Astragalus (milkvetch) and Medicago (alfalfa). ​ ​ Habitat: Meadows, roadsides, dry steppe slopes and forest glades. ​ Range: Throughout eastern Oregon. ​ Season: mid-April to mid-September ​ Abundance: Common Conservation Status: Secure

Gallery Prev Next W Boundary Rd, Lane Co, April 26 - female Propertius Duskywing 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

Gallery Prev Next Undisclosed location, western Oregon Hoary Elfin Callophrys polios Size: 1.0 - 1.25 inches wingspan ​ Key ID features: Above both sexes gray-brown. Below shades of dark brown. Light white median line, stronger on FW, with strong "frosted" look between HW median line and HW margin. No tails. ​ Similar species: Moss's Elfin lacks strong frosted look between trailing margin and postmedian line. Hostplant: Kinnikinnick (Arctostaphylos uva-ursi ) . ​ Habitat: Open rocky areas in mountains, coastal bluffs and dunes, forest roadsides, always close to Kinnikinnick. ​ ​ Range: Isolated populations in Blue Mtns, coastal Lincoln and Curry counties, and in Linn, Morrow and Wallowa counties. ​ Season: L ate April to late May ​ Abundance: Uncommon Conservation Status: Coastal subspecies C. polios maritima is imperiled in OR

Gallery Prev Next Fitton Green, Linn County, March 26 Echo Azure Celastrina echo AKA Pacific Azure Size: 1.0 - 1.25 inches wingspan ​ Key ID features: Male lilac-blue above, with no black markings. Female dusky-blue, with few marginal spots ringed with gray, FW with dark bands on outer edge. Below, bright gray-white, with very light marginal band of chevrons, and small black spots. Below, gray discal bars on both FW and HW. ​ Similar species: Light markings below with no tails or orange spots distinctive and usually easy to distinguish from other blues. Host plant: Many shrub species including red osier dogwood, elderberry, madrone, snowbrush, and oceanspray . ​ Habitat: Shrubby habitats and riparian areas. ​ ​ Range: Most of Oregon except dry basin and range areas on the east side of Cascade Mtns. ​ Season: Late February to early October ​ Abundance: Common Conservation Status: Secure

Gallery Prev Next Crooked Cr, Lake Co, August 6 - female Hedgerow Hairstreak Satyrium saepium Size: 1.0 - 1.25 inches wingspan ​ Key ID features: Coppery-brown above. Gray-brown below (darker when very fresh) with broken median line, and vague submarginal band of black chevrons on HW. Relatively short tails, with blue frosted patch just below. ​ Similar species: Somewhat similar to Mtn Mahogany HS, which is more gray or gray-frosted over brown below. Gold-Hunter's HS has a less clear and less defined median line on HW below, and has a very restricted range. Host plant: Ceanothus species, including C. cuneatus (Buckbrush), C. velutinus (Snowbrush) and C. integerrimus (Deerbrush) . ​ Habitat: Shrubby hillsides and canyons, oak scrub, chaparral where host plants grow. ​ ​ Range: NE Oregon, SW Oregon, Cascade Range. ​ Season: Mid-May to late September ​ Abundance: Common Conservation Status: Secure