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Photos, flight season, distribution and host plant information, conservation status, and identification tips for the Cabbage White butterfly. Gallery Prev Next Lost Lake, Linn Co, August 21 Cabbage White Pieris rapae Size: 1.25 - 1.75 inches wingspan Key ID features: Males white with one black spot and black apex on FW. Female white with two black spots and black FW apex. Yellowish below. Similar species: Mustard White lacks black spots on FW. Host plant: Many species of mustards, including food plants in the cabbage family. Habitat: Found in most habitat types. Range: Introduced from Europe. Found throughout Oregon. Season: Early March to early November Abundance: Abundant Conservation Status: Secure

Photos, flight season, distribution and host plant information, conservation status, and identification tips for the Juba Skipper butterfly. Gallery Prev Next Rd 23, Lane Co, June 16 Juba Skipper Hesperia juba Size: Up to 1.5 inch wingspan Key ID features: Above, male brownish orange with jagged line of light orange spots, dark brown edges, like teeth pointing inward, dark stigmata. Above female brown with jagged row of light orange spots, some almost white spots near wing tip, also with dark brown edges, like teeth pointing inward . Below greenish gray with disjointed white bands, lowest patch of white on outer band displaced inwardly (but not as strongly as Nevada Skipper). Similar species: On HW below Nevada Skipper has the lowest segment of the outer white spot band more strongly offset. Host plant: Bunchgrass species. Habitat: Sage habitats, roadsides, dry woodland openings. Range: All of Oregon except north Coast Range and coast. Season: Mid-April to early October Abundance: Uncommon Conservation Status: Secure

Photos, flight season, distribution and host plant information, conservation status, and identification tips for the Rural Skipper butterfly. Gallery Prev Next Grave Creek Bridge, Josephine Co, June 29 Rural Skipper Ochlodes agricola Size: Up to 1 inch wingspan Key ID features: Above, small, tan-orange with graduated dark border . Male with black stigmata on FW, female with black patch in same location. HW below plain orange-tan in male, plain purplish brown in female which has vague lighter patches. Similar species: Unmarked orange-tan HW below on male distinct within its range. Host plant: Various grass species. Habitat: Forest edges and openings, riparian areas. Range: Josephine, Curry and Coos counties, small area along CA border at Jackson County/Josephine County border. Season: Late May to late July Abundance: Locally common Conservation Status: Secure

Photos, flight season, distribution and host plant information, conservation status, and identification tips for the Compton's Tortoiseshell butterfly. Gallery Prev Next Oregon State Arthropod Collection #0001093061- male Thank you to Dana Ross and Paul Hammond , volunteers at OSAC! Compton Tortoiseshell Nymphalis l-album Size: Up to 3 inch wingspan Key ID features: FW above rusty orange with black patches, dark mustard yellow border and marginal band with black line between. HW brown with broader mustard bands, and white bar at leading edge with dark patches on each side. Below two-toned brown or gray, with darker inner half and lighter striated outer half, blue-gray submarginal band. HW below with flattened silver "v," sometimes reduced or absent. Similar species: Above, white bar on leading edge of HW is unique. Host plant: Birches, willows, and aspens . Habitat: Typically found along streams in forested areas, and in mountain canyons. Range: Wallowa Mtns, and far NE Blue Mtns . Season: Early March to mid-October. Abundance: Scarce, may not breed in Oregon every year. Conservation Status: Secure

Photos, flight season, distribution and host plant information, conservation status, and identification tips for the Western Branded Skipper butterfly. Gallery Prev Next Mtn Lakes Wilderness, Klamath Co, August 14 Western Branded Skipper Hesperia colorado Size: Up to 1.25 inch wingspan Key ID features: Above, male orange with very light jagged line of orange spots, narrow dark brown edges (not toothed), bold dark stigmata on FW. Above female brown with jagged row of light orange spots, some almost white spots near wing tip, also with dark brown edges, like teeth pointing inward . Below greenish gray with disjointed white bands, sometimes small or missing, lowest patch of white on outer band not displaced inwardly. Similar species: On HW below Nevada Skipper has the lowest segment of the outer white spot band strongly offset. Juba Skipper is larger, has dark jagged "teeth" on FW above. Uncas Skipper and Sandhill Skipper have prominent light veins below. Host plant: Various grass species. Habitat: Broad range of grass dominated habitats. Range: All of eastern and southwestern Oregon. Season: E arly May to late September Abundance: Common Conservation Status: Secure

Photos, flight season, distribution and host plant information, conservation status, and identification tips for the Milbert's Tortoiseshell butterfly. Gallery Prev Next Sand Cr, Klamath Co, June 25 Milbert's Tortoiseshell Aglais milberti Size: Up to 2 inch wingspan Key ID features: Unmistakable. Above black with broad red and orange submarginal band across FW and HW, and HW with blue spots in black marginal band. Below two-toned with very dark inner half and brown striated outer half with darker margin. Similar species: Above, unlike any other Oregon species. Below, California Tortoiseshell less distinctly two-toned, outer band more variable and more gray than brown. Host plant: Stinging Nettle (Urtica dioica ) . Habitat: Wherever nettles grow, often in wet areas or along waterways. Range: Throughout Oregon . Season: Potentially any time of year, but mostly January to October. Abundance: Common. Conservation Status: Secure

Photos, flight season, distribution and host plant information, conservation status, and identification tips for the Yuma Skipper butterfly. Gallery Prev Next Ana Reservoir SP, Lake Co, August 1 Yuma Skipper Ochlodes yuma Size: Up to 1.75 inch wingspan Key ID features: Large and plain. Above, tan-orange with graduated dark border . Male with black stigmata on FW, female with light spot band on FW. HW below plain pale tan. Similar species: Large size and unmarked pale tan HW below distinct. Host plant: Primarily American common reed (Phragmites australis ssp. americanus ). Habitat: Near s tands of reeds along streams, seeps and marshes in alkaline lowlands. Range: Summer Lake area in Lake County, Imnaha River canyon in Wallowa County. Season: Early July to early September Abundance: Uncommon Conservation Status: Secure

Photos, flight season, distribution and host plant information, conservation status, and identification tips for the Satyr Comma butterfly. Gallery Prev Next Winberry Cr Rd, Lane Co, March 15 Satyr Comma Polygonia satyrus AKA Satyr Anglewing Size: Up to 2.25 inch wingspan Key ID features: Above bright orange with black blotches and spots, jagged wing edges, and dark marginal band, bolder on FW. HW above has yellow patches adjacent to dark marginal band (sometimes missing), and a prominent triangular black spot in the center of the HW. Below jagged bands of striated brown, gray and tan, with prominent white comma mark (tipped on its side) in center of HW, often barbed at both ends. Similar species: Light brown tones below separate this from other comma species. Host plant: Stinging Nettle (Urtica dioica ) . Habitat: In riparian areas, forest openings. Range: Throughout Oregon . Season: Late February to early November. Abundance: Common. Conservation Status: Secure

Photos, flight season, distribution and host plant information, conservation status, and identification tips for the Oregon Swallowtail butterfly. Gallery Prev Next Lower Deschutes Canyon, Sherman Co, June 25 Thank you to Dana Ross and Paul Hammond , volunteers at OSAC! Oregon Swallowtail Papilio machaon oregonia Size: 2.75 - 3.25 inches wingspan Key ID features: Upperside yellow with black bands, veins, and patches, long single tails, blue chevrons on black band near hindwing margin. On HW above, black "pupil" on red eyespot is at the edge of the red, not centered. Abdomen is yellow on sides with relatively narrow black bands on top and bottom. Below, similar pattern as above, with paler yellow ground color, with reddish-orange halos on some of the HW blue chevrons. Similar species: Anise Swallowtail somewhat smaller, black pupil on HW red eyespots is centered within the red, abdomen is mostly black, with narrow yellow bands on sides. Host plant: Wild tarragon (Artemisia dracunculus ). Habitat: Canyons, hillsides, where host plant is found, and on cliffs, ridges, plateaus and mountains above. Range: Throughout Deschutes, Columbia and Snake River basins. Season: Mid-March to mid-October Abundance: Uncommon Conservation Status: Secure

Photos, flight season, distribution and host plant information, conservation status, and identification tips for the Clouded Sulphur butterfly. Gallery Prev Next Gateway alfalfa fields, Jefferson Co, Sep 2 - male Thank you to Dana Ross and Paul Hammond , volunteers at OSAC! Clouded Sulphur Colias philodice AKA: Colias eriphyle Eriphyle's Sulphur Size: 2.0 - 2.5 inches wingspan Key ID features: Pale yellow above with black or dark gray border, lime-green or yellow below. Some females lack yellow pigment and are white with black border above. Forewing below has blackish submarginal spots, hindwing below has submarginal row of brown "eurytheme" spots. Discal spot usually enclosed by double red ring with satellite spot. Similar species: Male Orange Sulphur is shaded with orange. White females very difficult to separate, but in Orange Sulphur they tend to have a bolder dark border on the hindwing above. Western Sulphur has single red ring enclosing the discal spot. Host plant: Many species in the pea family. Habitat: Many types of habitats, both disturbed and undisturbed, but usually not along roads in deep forest. Range: All of eastern Oregon. Season: early May to mid-October Abundance: Common Conservation Status: Secure

Photos, flight season, distribution and host plant information, conservation status, and identification tips for the Two-tailed Swallowtail butterfly. 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

Photos, flight season, distribution and host plant information, conservation status, and identification tips for the Edith's Copper butterfly. Gallery Prev Next Bristow Prairie, Lane Co, July 8 - female Edith's Copper Tharsalea editha AKA Lycaena editha Size: 1.1 - 1.25 inches wingspan Key ID features: Female above gray-brown with black spots and orange "arches" along upper HW trailing margin. Male above gray, with only a few small spots along HW trailing margin. Below HW grayish brown with brown spots outlined with darker brown, and submarginal white band. Female with darker, bolder spots on VFW and bolder orange line along VHW trailing margin. Similar species: Great Copper is larger, dorsal ground color often lighter, and HW spots smaller and further apart. Great Copper also often has a more noticeable tail. Tailed Copper has a prominent tail. Host plant: Dock (Rumex ) species and Knotweeds (Polygonum ). Habitat: Meadows, open areas along streams, roadsides. Range: Widespread in Siskiyou Mtns, Klamath Mtns, Warner Mtns, Southern Cascade Mtns, Ochoco Mtns, Blue Mtns. Wallowa Mtns. Season: Mid-June to early September Abundance: Common Conservation Status: Secure