Gallery Prev Next Kinney Cr Rd, Jackson Co, May 27 Columbian Skipper Hesperia columbia Size: Up to 1.4 inch wingspan ​ Key ID features: Above, bright orange often with deeply toothed dark border, male with dark stigmata on FW, female with dark patch in same location. Below greenish tan with reduced disjointed white bands, inner band reduced to a couple of spots. ​ Similar species: Other grass skippers have bolder, more extensive white bands below. ​ Host plant: Various grass species. ​ Habitat: Dry shrubby habitats. ​ Range: Jackson County and southern Josephine County. ​ Season: Early May to mid-October ​ Abundance: Uncommon Conservation Status: Secure

Gallery Prev Next Hat Point Road, Wallowa Co, June 28 Anise Swallowtail Papilio zelicaon Size: 2.5 - 3.0 inches wingspan ​ Key ID features: Black with broad buttery yellow bands, twisted tails, black abdomen with narrow yellow side-stripes. Below similar pattern, with paler yellow ground color and reddish-orange halos on some of the black-bordered blue chevrons. ​ Similar species: Oregon Swallowtail, which is larger, more lemony yellow, abdomen yellow with narrow black stripe on top and bottom. On Anise, black spot inside red spot near tail is in the middle of the red, whereas on the Oregon Swallowtail, its on the edge of the red. Host plant: Many species in the parsley family, including many native Lomatium species. ​ Habitat: Variety of open areas, including wetlands, dunes, mountaintops, roadsides, and disturbed areas ​ Range: Throughout Oregon. ​ Season: Late February - mid-September ​ Abundance: Common Conservation Status: Secure

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 Ana River, Lake Co, August 1 - female Mojave Sootywing Hesperopsis libya Size: Up to 1.5 inch wingspan ​ Key ID features: Above very dark brown with several white spots or bars on FW (bolder on female). Below deep brown-black with a few white spots near the tip of the FW. Below, HW has several white patches or bars, with a single spot close to wing base. ​ Similar species: Common Sootywing is smaller and darker, with white face. ​ Host plant: Fourwing saltbush (Atriplex canescens ) and related shrubs. ​ Habitat: Hot, dry sage and alkali flats, often near waterbody. ​ Range: Southern half of Lake, Harney and Malheur counties. ​ Season: Late July to early August ​ Abundance: Uncommon Conservation Status: Secure

Mack's Canyon Boat Launch, Sherman Co, April 30 Gallery Prev Next Two-tailed Swallowtail Papilio multicaudata Size: Over 5 inches wingspan ​ Key ID features: Very large. Upperside mostly yellow with wide bands of yellow on forewing separated by black lines, extra tails, blue chevrons on black band near hindwing margin. Below, very similar to above, with red-orange shading in yellow marginal spots near the tail. ​ Similar species: Western Tiger Swallowtail is smaller and has broader black bands on forewing and single tails. Host plant: Primarily western choke cherry (Prunus virginiana var. demissa). ​ Habitat: Riparian and road corridors, canyons and urban parks and gardens. ​ Range: Throughout eastern and southwestern Oregon. ​ Season: Late March - mid-September ​ Abundance: Common Conservation Status: Secure

Gallery Prev Next Summer Lake, Lake County, August 5 Becker's White Pontia beckerii Size: 1.5 - 2.0 inches wingspan ​ Key ID features: Above, white with black markings near tip of forewing. Below, bold greenish borders along veins especially on hindwing. ​ Similar species: Western White is smaller and much less green along veins below. Host plant: A large number of arid land mustards. ​ Habitat: Arid habitats, both disturbed and undisturbed. ​ Range: Primarily east of the Cascade Mtns, with a few records in the Willamette Valley. ​ Season: Mid-March to mid-September ​ Abundance: Common Conservation Status: Secure

Gallery Prev Next Hand Lake, Lane Co, August 4 Coronis Fritillary Argynnis coronis AKA Speyeria coronis Size: Up to 3 inch wingspan ​ Key ID features: Orange above with thin 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 light tan-brown "disc" on HW with large silvery-white oval spots and warm tan submarginal band. ​ Similar species: Callippe Fritillary is smaller, with silver spots showing through above more boldly. ​ Host plant: Violet (Viola ) species, varying by region of state . ​ Habitat: Open meadows, openings in oak-pine forest, lower slopes of mountains in eastern Oregon. ​ Range: Cascade Range, Siskiyou Mtns, all of eastern Oregon except Gilliam, Morrow, Umatilla and Wallowa counties. ​ Season: Early May to early October. ​ Abundance: Common Conservation Status: Secure .

Gallery Prev Next Buford Park, Lane Co, June 2 California Tortoiseshell Nymphalis californica Size: Up to 2.5 inch wingspan ​ Key ID features: Above bright orange with black and white patches on the leading edge of FW, a few smaller black spots on FW, and dark border on FW and HW. Below striated two-toned with darker inner half and brown outer half with darker margin, and often a dark gray-blue submarginal line. ​ Similar species: Above, Milbert's dark basally with bright orange rim. Below, Milbert's Tortoiseshell more distinctly two-toned, outer band lighter, more variable and more gray than brown. ​ Host plant: Ceanothus species include snowbrush (C. velutinus ), deerbrush (C. integerrimus ) . ​ Habitat: While dispersing, may be found in any habitat, including in the middle of urban areas. Otherwise in mountain slopes, canyons, meadows, riversides, road edges and shorelines. ​ Range: Throughout Oregon . ​ Season: Late January to early December. ​ Abundance: Common, abundant in some years. Conservation Status: Secure

Gallery Prev Next Gert Canyon, Wasco Co, May 4, female Arrowhead Blue Glaucopsyche piasus Size: 1.0 - 1.25 inches wingspan ​ Key ID features: Noticeably larger than most blues. Violet-blue above, with dark wing borders, white checked fringes. Below brownish-gray, HW with white arrows pointing toward median band of black spots. ​ Similar species: No other Oregon blue has white arrows on HW below pointing toward body. Host plant: Lupine species (Lupinus ) ​ Habitat: Open areas with lupines in sage-steppe, ponderosa pine stands, canyons and wet meadows. ​ ​ Range: Most of Oregon east of the Cascade Range and in SW Oregon. ​ Season: Early April to late August ​ Abundance: Common Conservation Status: Secure

Gallery Prev Next Lost Lake, Linn Co, August 28 Hoary Comma Polygonia gracilis Size: Up to 2 inch wingspan ​ Key ID features: Above orange with black blotches and spots, often with very jagged wing edges, submarginal row of yellow chevrons and brown to black marginal band. HW above has yellow gilded look, with yellow patches within dark orange marginal band. Below dark gray with lighter gray striations, and prominent curved (not sharply pointed) white comma in center of HW. ​ Similar species: Satyr Comma has brown shades below, and barbed white comma on HW. Green comma has green submarginal shading below. Oreas comma has pointed white "v" below. ​ Host plant: Currant species (Ribes ), and Rhododendron albiflorum (white azalea) . ​ Habitat: Forest openings, riparian areas, subalpine meadows, mostly above 3,000 feet. ​ Range: Coast Range, Willamette Valley, Western Cascades, east slope of Cascades, Blue Mtns . ​ Season: Early February to mid-October ​ Abundance: Common Conservation Status: Secure

Gallery Prev Next Big Summit Prairie, Crook Co, June 19 Mourning Cloak Nymphalis antiopa Size: Up to 3 inch wingspan and larger ​ Key ID features: Large. Above deep maroon edged with black band with blue spots, and cream to golden marginal band with dark mottling. Below nearly black with striations and tan specks, pale tan submarginal band. ​ Similar species: Above, unlike any other Oregon species. California Tortoiseshell orange and black above, below is more complexly marked and shaded. Milbert's Tortoiseshell is smaller, orange bands above, and below broad band of striated brown in outer half. ​ Host plant: Willows, and many other shrubs and trees including alder, maple, poplar, spiraea . ​ Habitat: In riparian areas, and other openings, usually near water. ​ Range: Throughout Oregon . ​ Season: Early May to mid-October. ​ Abundance: Common. Conservation Status: Secure

Gallery Prev Next Little Groundhog Mtn, Lane Co, July 8 - male Julia's Orangetip Anthocharis julia AKA Julia Orangetip Size: 1.25 - 1.5 inches wingspan ​ Key ID features: Male white above, with bold orange FW tip. Female pale yellow-green above with smaller orange patch near FW tip. Below patchy marbling with light yellow veins. ​ Similar species: Sara's Orangetip, which occurs only along the California border is very similar and difficult to distinguish in the field where they overlap. The two species are distinguished by several characteristics, including larval characteristics, number of overwintering cycles, and shape and color of the chrysalis. Host plant: Crucifers including several rockcresses. ​ ​ Habitat: Wide variety of open habitats. ​ Range: Found throughout Oregon. ​ Season: Mid-March to mid-August ​ Abundance: Common Conservation Status: Secure