Photos, flight season, distribution and host plant information, conservation status, and identification tips for the Lareg Marble butterfly. Gallery Prev Next Hat Point Rd, Wallowa Co, June 30 Large Marble Euchloe ausonides Size: Up to 1.75 inches wingspan Key ID features: Above, milk-white with black pattern on FW tip and narrow black bar in forewing cell, sometimes with light white scaling. Below, bold green marbling with yellow wash against white background and yellow veins. Similar species: California Marble and Desert Marble are smaller. California Marble has pearly or shiny look to white areas on VHW, and green marbling is often darker. Desert Marble lacks white scaling on forewing cell bar, and DFW tip markings often black rather than dark gray. Host plant: Many cruciferous species. Habitat: Open montane and foothill slopes, dry meadows and canyons, sage steppe habitats. Range: All of eastern Oregon and southwestern Oregon south of Douglas County. Season: Late March to late July Abundance: Common Conservation Status: Secure

Photos, flight season, distribution and host plant information, conservation status, and identification tips for the Mardon Skipper butterfly. Gallery Prev Next Soda Mtn Rd, Jackson Co, July 5 - ssp. klamathensis Mardon Skipper Polites mardon Size: Up to 1 inch wingspan Key ID features: Compact, rounded wings. Above orange and brown, males with small stigmata. HW below brown with neat arc of yellow bars forming a curved band, and one or two additional light spots near wing base . Similar species: HW pattern below is somewhat similar to Sonoran Skipper, which has longer, narrower wings and HW spots that are more rounded and less distinct. Host plant: Grass species, especially fescues, including Idaho fescue (Festuca idahoensis ), red fescue (Festuca rubra ) and Roemer's fescue (Festuca roemeri ). Habitat: Ponderosa pine openings, Ceanothus patches. Range: Coastal Curry County, Cascade Siskiyou National Monument. Season: Mid-May to early August Abundance: Rare Conservation Status: Federal Species of Concern; designated Imperiled in Oregon

Photos, flight season, distribution and host plant information, conservation status, and identification tips for the Lindsey's Skipper butterfly. Gallery Prev Next Kinney Cr Rd, Jackson Co, May 28 Lindsey's Skipper Hesperia lindseyi Size: Up to 1.25 inch wingspan Key ID features: Above, bright orange. Female relatively unmarked, male with vague dark borders, narrow stigmata on FW. Below greenish tan with disjointed white (female) or yellowish (male) spot bands--spots angular, veins lined with pale (not bright) scales. Similar species: Sandhill Skipper smaller, with larger light areas below. Uncas Skipper range does not overlap. Host plant: Lupines, grasses, oaks. Habitat: Oak woodland and dry shrubby habitats with grasses. Range: Jackson County and Josephine counties, southern Klamath County, Warner Mtns. Season: Early June to mid-July Abundance: Locally common Conservation Status: Secure

Photos, flight season, distribution and host plant information, conservation status, and identification tips for the Chalcedona Checkerspot butterfly. Gallery Prev Next Kinney Cr Rd, Jackson Co, May 26 Chalcedona Checkerspot Euphydryas chalcedona Size: Up to 2.75 inch wingspan Key ID features: Above black with alternating red and white spot bands separated by black lines. HW below has red and white bands, which, from the margin run red-white-red-white-white. Submarginal spot band on dorsal HW has larger pale ivory spots than other similar species. Similar species: Edith's checkerspot has red-white-red-red-white band pattern on HW below. Snowberry Checkerspot has smaller spots in the submarginal band on the dorsal HW. Hostplant: Several species in the figwort family, including paintbushes (Castilleja ), penstemons, and monkeyflowers . Habitat: Mountains and high canyons. Range: Warner Mtns, southern Klamath Mtns and in Jackson and Josephine counties along the border with CA . Season: Late April to early August Abundance: Locally common Conservation Status: Secure

Directory with photos and links for all of Oregon's butterflies in the skipper family. Skippers Click photo for more details Silver-spotted Skipper Epargyreus clarus Mojave Sootywing Hesperopsis libya Two-Banded Checkered-Skipper Pyrgus ruralis Common Roadside Skipper Amblyscirtes vialis Lindsey's Skipper Hesperia lindseyi Sonoran Skipper Polites sonora Dun Skipper Euphyes vestris Northern Cloudywing Thorybes pylades Dreamy Duskywing Erynnis icelus Common Checkered-Skipper Burnsius communis Uncas Skipper Hesperia uncas Nevada Skipper Hesperia nevada Sachem Skipper Atalopedes campestris Western Cloudywing Thorybes diversus Propertius Duskywing Erynnis propertius Northern White Skipper Heliopetes ericetorum Juba Skipper Hesperia juba Peck's Skipper Polites peckii Woodland Skipper Ochlodes sylvanoides Nevada Cloudywing Thorybes nevada Pacuvius Duskywing Erynnis pacuvius Arctic Skipper Carterocephalus skada Western Branded Skipper Hesperia colorado Sandhill Skipper Polites sabuleti Rural Skipper Ochlodes agricola Common Sootywing Pholisora catullus Persius Duskywing Erynnis persius Garita Skipperling Oarisma garita Columbian Skipper Hesperia columbia Mardon Skipper Polites mardon Yuma Skipper Ochlodes yuma

Photos, flight season, distribution and host plant information, conservation status, and identification tips for the Pacuvius Duskywing butterfly. Gallery Prev Next Metolius River, Jefferson Co, June 30 Pacuvius Duskywing Erynnis pacuvius Size: Up to 1.5 inch wingspan Key ID features: Above, FW gray-brown with frosted band and spots, 3-5 tiny hyaline (glassy, translucent) spots on FW. W hen fresh, FW above often has noticeable brown patches. Female FW above often with gray scaling only outside of the dark brown patch in the FW cell area. 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: When fresh, FW above often has noticeable brown patches, which no other Oregon duskywings have. Host plant: Various ceanothus species. Habitat: Shrub lands, dry brushy areas, ponderosa pine/douglas-fir openings. Range: Cascade Range, Siskiyou Mtns, Klamath Mtns, NE Blue Mtns, Wallowa Mtns. Season: Late April to early August Abundance: Common Conservation Status: Secure

Photos, flight season, distribution and host plant information, conservation status, and identification tips for the Arctic Skipper. Gallery Prev Next Lookout Cr Rd, Lane Co, May 26 Arctic Skipper Carterocephalus skada Size: Up to 1 inch wingspan Key ID features: Small and boldly marked . Above dark brown with many light orange patches on both wings. Below FW light orange with brown patches, HW darker orange with white or pale yellow spots with dark rims. Similar species: No other similar species (small skipper with orange spots on brown wings) in Oregon. Host plant: Grass species. Habitat: Forest openings, grassy meadows, streambanks, riparian areas--usually near water. Range: NE Blue Mtns, Wallowa Mtns, Cascade Range, northern Coast Range, and isolated Coast Range populations in Coos and Benton counties. Season: Mid-April to early August Abundance: Common Conservation Status: Secure

Photos, flight season, distribution and host plant information, conservation status, and identification tips for the Monarch butterfly. Gallery Prev Next Summer Lake, Lake Co, August 6 Monarch Danaus plexippus Size: 3.0 - 4.5 inch wingspan Key ID features: Large. Above deep orange with black veins, black borders with double row of white spots, FW tips black with white and light orange spots. Below, similar pattern except Orange areas on HW are light creamy orange, and FW tip has two creamy light orange patches surrounded by black border with white spots. Similar species: Viceroy is smaller, FWs shorter, has black curved line diagonally across HW. Host plant: Milkweeds (Asclepias ) . Habitat: Can be found almost anywhere during migration. Range: Found throughout Oregon. Season: Early June to late October Abundance: Uncommon Conservation Status: Has been submitted for Federal Listing as Threatened.

Photos, flight season, distribution and host plant information, conservation status, and identification tips for the Oreas Comma butterfly. Gallery Prev Next Mt. Hebo, Tillamook Co, August 13, ssp. silenus Oreas Comma Polygonia oreas AKA Oreas Anglewing Size: Up to 2 inch wingspan Key ID features: Above orange with black blotches and spots, often with very jagged wing edges. FW above has yellow patches adjacent to dark marginal band. HW above has submarginal row of yellow/orange crescent-shaped chevrons within brown to black marginal band. Below dark chocolate or dark gray to black, with lighter gray striations, and prominent white flattened "v" with no hooks (usually pointed at the bottom, often looking like a gull in flight), in center of HW. Similar species: Darker below than other comma species, white "v" mark on HW below lacks barbs. Other comma species either have stronger green submarginal shading below or the "comma" mark on HW below is curved (not a pointed "v") or barbed or both. Other commas species have less jagged wing edges, often looking smooth between major points. Host plant: Currant species (Ribes ), including R. divericatum (straggly gooseberry), and R. lacustre (swamp gooseberry) . Habitat: Forest fringes, especially in older stands, riparian areas and ravines, subalpine meadows. Range: Coast Range, Willamette Valley, Western Cascades, east slope of Cascades, Wallowa Mtns, Blue Mtns . Season: Late February to mid-September Abundance: Uncommon Conservation Status: Secure

Photos, flight season, distribution and host plant information, conservation status, and identification tips for the California Crescent butterfly. Gallery Prev Next Lincoln Cr Rd, Jackson Co, May 20 California Crescent Phyciodes orseis Size: Up to 1.5 inch wingspan Key ID features: Above, rows of orange and light orange spots separated by black. FW margin slightly indented. HW above with submarginal band of small black dots circled with orange. Below, bands of orange, cream and white with brown patches, postmedian yellow-tan band with small brown dots . Knobs on anntennae mostly orange. Similar species: Range does not overlap with Pale Crescent, P. orseis is larger than Field or Mylitta. Host plant: Thistles including Cirsium cymosum and C. andersonii . Habitat: Dry hillsides, streamsides and canyons. Range: Southern Siskiyou Mtns, Warner Mtns . Season: Late March to early August Abundance: Common Conservation Status: Secure

Photos, flight season, distribution and host plant information, conservation status, and identification tips for the Green Comma butterfly. Gallery Prev Next Lost Lake, Linn Co, August 1 Green Comma Polygonia faunus Size: Up to 2 inch wingspan Key ID features: Above deep orange with black blotches and spots, often with very jagged wing edges, submarginal row of yellow spots on brown to black marginal band. Below striated bands of gray-brown and gray, and prominent curved (not pointed) white comma in center of HW, often barbed on one end. Similar species: Satyr Comma has brown shades below, and barbed white comma on HW. Hoary comma lacks submarginal shading below. Oreas comma has pointed white "v" below. Host plant: Willows, aspen and alders . Habitat: Conifer forest openings, meadows, roadsides. Range: All of western Oregon , plus Warner Mtns, Ochoco Mtns, Wallowa Mtns and Blue Mtns . Season: Late February to late 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