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

Butterflies of Oregon Welcome to Butterflies of Oregon, a resource for Oregon butterfly enthusiasts, with photos of all of Oregon's regularly occurring butterfly species and information to help you find and identify them. ​ Butterflies of Oregon also shares stories of the author's attempt to photograph all of Oregon's butterfly species in the wilds of Oregon. ​ Thanks for visiting! www.butterfliesoforegon.com Subscribe to Blog Thanks for submitting! Email Us

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

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 thin black rectangle ("cell bar") in forewing cell with light white scaling. Below, bold gray-green marbling against white background and yellow veins. ​ Similar species: California Marble and Desert Marble are smaller. Desert Marble has pearly or shiny look to white areas. California Marble lacks white scaling on forewing cell bar. 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

Gallery Prev Next Mill Cr Rd, Lane Co, August 9 Sylvan Wood Nymph Cercyonis silvestris AKA Disguised Wood Nymph Size: Up to 1.75 inch wingspan ​ ​ Note: this species was recently clarified by DNA analysis to be a distinct species, formerly assumed to be a west-side segregate of Great Basin Wood Nymph. ​ 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 typically indistinct. ​ Similar species: Great Basin Wood Nymph is slightly larger, more grayish below, with more prominent HW median bands below, HW median line more distinct and jagged. Small Wood Nymph is typically somewhat smaller and darker, with more distinct and jagged VHW median line, and 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 the Cascades in Linn Lane, Douglas,and Jackson counties. ​ Season: Late July to late September ​ Abundance: Locally 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

Gallery Prev Next Summit Meadows, LaneCo, August 13 Sonoran Skipper Polites sonora Size: Up to 1.25 inch wingspan ​ Key ID features: Above orangish-brown, with darker reddish brown border, and vague light spot band on HW. Males with black stigmata with adjacent dark patches on FW, female FW with dark patch surrounded by yellowish spots. HW below brown with arc of pale yellow bars forming a curved band, and an elongated light spot near wing base . HW bars somewhat rounded with indistinct edges. ​ Similar species: HW pattern below is somewhat similar to Mardon Skipper, which has shorter, broader wings and HW spots that are angular and more distinct. ​ Host plant: Various grass species. ​ Habitat: Flowery meadows and pastures, forest openings, roadsides, streambanks. ​ Range: Cascade Range, Siskiyou Mtns, Klamath Mtns, Warner Mtns, Ochoco Mtns, Blue Mtns, Wallowa Mtns, Willamette Valley. ​ Season: Late May to late August ​ 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 Kelley Cr, Warner Mtns, Lake Co, July 4 Great Purple Hairstreak Atlides halesus AKA Great Blue Hairstreak Size: 1.25 - 1.5 inches wingspan ​ Key ID features: Above bright iridescent blue with black borders. Below black with iridescent blue band adjacent to long tails, red patches next to body and on sides of thorax. ​ Similar species: No similar species in Oregon. Host plant: Oak mistletoe (Phoradendron leucarpum ). ​ Habitat: Oak savanna, with mistletoe. ​ ​ Range: Warner Mtns, Siskiyou Mts, Willamette Valley. ​ Season: Early April to early October ​ Abundance: Uncommon Conservation Status: Secure

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

Gallery Prev Next Upper Klamath River, Klamath Co, May 29 Cedar/Juniper Hairstreak Callophrys gryneus Size: 1.0 - 1.25 inches wingspan ​ Key ID features: Found near cedar or juniper trees . Above, gray-brown or reddish brown, sometimes with redder patches near tails. Below, shades of brown, gray, and violet, with white postmedian line that varies from bold to nearly absent. Blue submarginal ("thecla") patches near tails vary in size and brightness, but usually lacking orange. ​ Similar species: Johnson's Hairstreak is darker shade of brown, postmedian white line is bolder with a more pronounced "M" on the HW, and generally only found in and near old growth forest. Host plant: Western redcedar (Thuja plicata ), incense cedar (Calocedrus decurrens ) and western juniper (Juniperus occidentalis ). ​ Habitat: Roadsides, meadows, riparian zones, forest edges and clearings near the host plant. ​ ​ Range: Most of Oregon, but missing from most of Coast Range, Blue Mtns, Wallowas and Malheur County. ​ Season: Late March to early August ​ Abundance: Abundant Conservation Status: Secure