Photos, flight season, distribution and host plant information, conservation status, and identification tips for the Common Roadside Skipper. Gallery Prev Next Mill Cr Rd, Lane Co, July 1 Common Roadside Skipper Amblyscirtes vialis Size: Up to 1 inch wingspan Key ID features: Tiny and difficult to see until perched . Above, dark brown with a few white spots at leading edge near wingtip, fringes often checked. Below dark brownish gray, with gray frosted look in outer half of HW. Similar species: Darker and more marked than Dun Skipper, and more triangular shape. Common Sootywing has more white spots above and white face. Host plant: Many grass species. Habitat: Roadsides, and other warm, sunny sites, often near water. Range: Cascade Range, north Coast Range, Ochoco Mtns, Blue Mtns, Wallowa Mtns. Season: Late April to late August Abundance: Uncommon Conservation Status: Secure

Directory with photos and links for all of Oregon's butterflies in the coppers, hairstreaks and blues families. Coppers, Hairstreaks & Blues Click photo for more details American Copper Lycaen a hypophlaeas Gorgon Copper Tharsalea gorgon Mariposa Copper Tharsalea mariposa Behr's Hairstreak Satyrium behrii Mountain Mahogany Hairstreak Satyrium tetra Cedar/Juniper Hairstreak Callophrys gryneus Hoary Elfin Callophrys polios Arrowhead Blue Glaucopsyche piasus Pacific Dotted Blue Euphilotes enoptes Eastern Tailed Blue Cupido comyntas Acmon Blue Icaricia acmon Sierra Nevada Blue Agriades podarce Lustrous Copper Lycaena cupreus Ruddy Copper Tharsalea rubidus Golden Hairstreak Habrodais grunus California Hairstreak Satyrium californica Hedgerow Hairstreak Satyrium saepium Thicket Hairstreak Callophrys spinetorum Western Pine Elfin Callophrys eryphon Silvery Blue Glaucopsyche lygdamus Columbian Blue Euphilotes columbiae Western Tailed Blue Cupido amyntula Lupine Blue Icaricia lupini Mormon Metalmark Apodemia mormo Tailed Copper Tharsalea arota Blue Copper Tharsalea heteronea Great Purple Hairstreak Atlides halesus Sylvan Hairstreak Satyrium sylvinus Western Green Hairstreak Callophrys affinis Johnson's Hairstreak Callophrys johnsoni Gray Hairstreak Strymon melinus Summit Blue Euphilotes glaucon Ancilla Blue Euphilotes ancilla Greenish Blue Icaricia saepiolus Northern Blue Plebejus idas Edith's Copper Tharsalea editha Purplish Copper Tharsalea helloides Sooty Hairstreak Satyrium fuliginosa Coral Hairstreak Satyrium titus Bramble Hairstreak Callophrys dumetorum Brown Elfin Callophrys augustinus Echo Azure Celastrina echo Cascadia Blue Euphilotes heracleoides Leona's Blue Philotiella leona Boisduval's Blue Icaricia icarioides Anna's Blue Plebejus anna Great Copper Tharsalea xanthoides Lilac-bordered Copper Tharsalea nivalis Half-moon Hairstreak Satyrium semiluna Gold-hunter's Hairstreak Satyrium auretorum Sheridan's Hairstreak Callophrys sheridanii Moss's Elfin Callophrys mossii Asher's Blue Celastrina asheri Bauer's Blue Euphilotes baueri Western Pygmy Blue Brephidium exilis Shasta Blue Icaricia shasta Melissa's Blue Plebejus melissa

Photos, flight season, distribution and host plant information, conservation status, and identification tips for the Viceroy butterfly. Gallery Prev Next Warehouse Beach Rec Area, Umatilla Co, August 24 Viceroy Limenitis archippus Size: Up to 3.25 inch wingspan Key ID features: At first glance looks like small Monarch. Bright orange above with black veins, bold black margins with single row of submarginal white spots, curving black line through HW. Below, lighter orange with black veins and borders, black line through HW more bold. Similar species: Monarch is notably larger and lacks black line through middle of HW, has double row of white spots in black marginal band above. Host plant: Willow (Salix ) species . Habitat: Near water and willows. Range: Found in Columbia River and Snake River drainages. Season: Early April to late September. Abundance: Uncommon Conservation Status: Secure

Photos, flight season, distribution and host plant information, conservation status, and identification tips for the Leona's Little Blue butterfly. Gallery Prev Next Doral View Sand Cr drainage, Klamath Co, July 6 Leona's Little Blue Philotiella leona AKA: Euphilotes leona Leona Blue Size: Up to 0.75 inches wingspan Key ID features: Small. Males dusky blue above with darker wing borders. Female dark brown. Below white or off-white with bold black spots, larger on FW, boldly checked fringes on FW. Similar species: No other similar species in Oregon. Host plant: Eriogonum spergulinum (Spurry buckwheat). Habitat: Pumice lands east of Crater Lake near host plant. Range: 6 square mile area east of Crater Lake. Season: Mid-June to late July Abundance: Uncommon Conservation Status: USFS Sensitive Species. Was proposed to be listed as Endangered under Federal Endangered Species Act, but after a 5-year review, listing was judged to be "not warranted."

Photos, flight season, distribution and host plant information, conservation status, and identification tips for the Pink-edged Sulphur butterfly. Gallery Prev Next Lake Cr Trail, Deschutes Co, July 3 - male Pink-Edged Sulphur Colias interior Size: 1.5 - 2.0 inches wingspan Key ID features: Male above, solid black wing borders. Female above, smudgy FW border, can be either pale yellow or white. Below, HW yellow, with little or no black scaling, and discal spot single-rimmed with no satellite. Usually with bright pink wing fringes. Flight pattern is more relaxed than other sulphurs. Perhaps the most important clue for ID is the pattern of dark over-scaling on the ventral hindwing: often light overall and more dense toward the thorax and gradually fading out past the discal spot . Similar species: Other similar sulphur species in Oregon lack the gradual decrease in the density of overscaling on the dorsal hindwing (see above). Clouded Sulphurs have double ring around discal spot on HW below. Western Sulphurs greenish on HW below. Queen Alexandra's Sulphurs are larger, have more pointed wings, heavier black overscaling below with a strong greenish cast, and lighter pink wing borders. Host plant: Various species of Vaccinium (huckleberry). Habitat: Mid-elevation forest clearings, meadows marshes and heathlands. Range: Central OR Cascades and Blue Mountains. Season: Early June to mid-September Abundance: Uncommon Conservation Status: Secure

Photos, flight season, distribution and host plant information, conservation status, and identification tips for the Western Cloudywing butterfly. Gallery Prev Next Oregon Mountain, Josephine Co, June 4 Western Cloudywing Thorybes diversus AKA Cecropterus diversus Size: Up to 1.75 inch wingspan Key ID features: Above very dark brown with a few narrow white bars and spots on FW. Bars and spots translucent. Below similar to above, dark brown with with a few narrow tan or off-white bars and spots on FW. Tends to perch on elevated rocks rather than on ground or plant. Similar species: Northern Cloudywing has shorter and wider sub-cell white bar on FW, and male lacks costal fold. Northern Mexican Cloudywing has striations below on the outer portion of wings. Host plant: Various clover (Trifolium ) species . Habitat: Damp hillsides, creeksides, clearings in coniferous forest. Range: Very restricted range near CA border in Josephine County and Klamath County. Season: Mid-May to early July Abundance: Uncommon Conservation Status: Secure

Photos, flight season, distribution and host plant information, conservation status, and identification tips for the Hydaspe Fritillary butterfly. Gallery Prev Next Catherine Cr Rd, Wallowa Co, July 8 Hydaspe Fritillary Argynnis hydaspe AKA Speyeria hydaspe Size: Up to 2.25 inch wingspan Key ID features: Male deep 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. Female dark orange above with all black markings bolder. Below ground color of "disc" on HW usually deep maroon to purplish-brown, with creamy to white oval spots, and a submarginal pink or pinkish band, often vague or missing. Similar species: Hesperis has more reddish brown color below, and submarginal band is less pink, more distinct and usually crossed with bold veins. Zerene can have similar coloration, but would have smaller discal spots and more flattened marginal spots. Host plant: Violet (Viola ) species . Habitat: Openings, riparian areas and meadows in coniferous forests. Range: Found throughout Cascades and western Oregon, and in Klamath, Warner, Siskiyou, Ochoco, Wallowa and Blue Mtns. Season: Late May to late September. Abundance: Common Conservation Status: Secure

Photos, flight season, distribution and host plant information, conservation status, and identification tips for the Johnson's Hairstreak butterfly. Gallery Prev Next Deception Creek, Lane Co, June 26 Johnson's Hairstreak Callophrys johnsoni Size: 1.25 - 1.5 inches wingspan Key ID features: Above both sexes brown. Below chocolate brown. Long tails on HW. White median line containing flattened "W" near white-tipped tails, and submarginal row of black spots (sometimes vague) along half of trailing margin of HW. Similar species: Thicket HS has more prominent "W" (or "M") in white median line, is blue above, and submarginal spots on HW below run entire length of trailing margin. Host plant: Dwarf mistletoes that grow on Western Hemlock and Grand fir (in the Cascade Range) and on Ponderosa Pine (in the Blue Mountains). Habitat: Clearings in old growth coniferous forest (Ponderosa pine, Douglas-fir, western hemlock, grand fir). Range: Cascade Range, Siskiyou Mtns, and in the Blue Mtns in Baker and Union counties. Season: Mid-May to early September Abundance: Uncommon Conservation Status: Oregon State Species of Concern

Photos, flight season, distribution and host plant information, conservation status, and identification tips for the Pine White butterfly. Gallery Prev Next 3 Creeks Sno-Park, Deschutes Co, August 19 - male Pine White Neophasia menapia Size: 1.5 - 2.0 inches wingspan Key ID features: Bright white with black leading margin and tip of forewing. Underside of HW has veins outlined in black. Underside of female hindwing outlined in red-orange. Notably graceful flight pattern. Similar species: Mustard (margined) white has more delicate dark markings on veins below and lacks heavy black marks above Host plant: Douglas fir, Ponderosa pine and other pine species. Habitat: Fir and pine forests, and in some urban areas near pines. Range: Western Oregon and Ochoco Mtns, Blue Mtns and Wallowa Mtns. Season: Late June to mid-October Abundance: Common Conservation Status: Secure

Photos, flight season, distribution and host plant information, conservation status, and identification tips for the Sara Orangetip butterfly. 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

Photos, flight season, distribution and host plant information, conservation status, and identification tips for the Anicia Checkerspot butterfly. Gallery Prev Next Arizona Cr, Pueblo Mtns, Harney Co, June 2 Anicia Checkerspot Euphydryas anicia Size: Up to 2.25 inch wingspan Key ID features: Highly variable. Above black with red and white spot bands, marginal band of red spots. Below bands of white and red spots edged thinly in black, crossed by black veins. sometimes more white than red, marginal band is red, fringes checked. On hindwing below (starting at margin) pattern of bands is usually red-white-red-white -white. Similar species: Edith's checkerspot has red-white-red-red -white band pattern on HW below (starting at margin). Chalcedona Checkerspot has ivory spots above instead of white, and is larger. Snowberry Checkerspot is typically blacker above, with rounder wing shape. Host plant: Members of the figwort family, including penstemons and paintbrushes . Habitat: Sage-steppe, arid high grasslands, canyons. Range: In high desert east of the Cascade Range, from Warner Mtns to Steens Mtn up to broad swath along Deschutes River. Also in highlands west of the Snake River . Season: Mid-March to mid-August Abundance: Common Conservation Status: Secure

Photos, flight season, distribution and host plant information, conservation status, and identification tips for Small Wood Nymph. Gallery Prev Next Mill Cr Rd, Lane Co, August 9 Sylvan Wood Nymph Cercyonis silvestris AKA Sylvan Satyr Size: Up to 1.75 inch wingspan Note: this species, formerly assumed to be a west-side segregate of Great Basin Wood Nymph, was recently clarified by DNA analysis to be a distinct species. Key ID features: Above grayish-brown usually with two eye spots on FW. Below, striated chocolate brown with one to several small eyespots on HW, two eyespots on FW, lower spot usually noticeably smaller than upper spot. Dark median line on HW sometimes indistinct, less erratically jagged than on Small Wood Nymph. Similar species: Great Basin Wood Nymph is slightly larger, more grayish below, with more prominent HW median bands below, and HW median line more distinct and jagged. Small Wood Nymph is typically somewhat smaller and darker, with more distinct and more jagged VHW median line, and usually with significantly smaller lower eyespot. Host plant: Undetermined grass species. Habitat: Openings in forested habitats, and along forest roads in foothills and mountains. Range: West slope of the Cascades in Linn, Lane, Douglas,and Jackson counties. Season: Late July to late September Abundance: Locally common Conservation Status: Secure