Gallery Prev Next Little Groundhog Mtn, Lane Co, July 18 Sheridan's Hairstreak Callophrys sheridanii AKA Sheridan's Green Hairstreak Size: 0.8 - 1.0 inches wingspan ​ Key ID features: Above both sexes light gray or brown. Below dark green when fresh, with black scaling, lighter green with gray when worn. Below, HW post median white band variable, sometimes bold. Below, FW mostly green. Often perches directly on the ground. ​ Similar species: Bramble and Western Green primarily perch on shrubs or host plant. Host plant: Many buckwheat species (Eriogonum ), including Eriogonum umbellatum. ​ Habitat: Washes, canyons, draws, high rocky-chutes, alpine swales. ​ ​ Range: Southern Cascades, Siskiyou Mtns, Warner Mtns, Steens Mtn, Ochoco Mtns, Blue Mtns, north central Oregon. ​ Season: Early March to early August ​ ​ Abundance: Uncommon Conservation Status: Secure

Gallery Prev Next Izzee Rd Meadow, Grant Co, June 29 Garita Skipperling Oarisma garita Size: Up to 1 inch wingspan ​ Key ID features: Small and triangular . Above, dark brown with brassy sheen, and veins that look darker than wings. Below lighter orange-brown, veins lighter than ground color. ​ Similar species: No other similar species in Oregon. ​ Host plant: Grass and sedge species. ​ ​ Habitat: Montane mid-elevation grasslands, moist pastures, weedy marshes and fields. ​ Range: Grassy areas north and west of Wallowa Mtns. ​ Season: Early June to early August ​ Abundance: Uncommon Conservation Status: Secure

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

Gallery Prev Next King Mountain Rd, Harney Co, June 13 - male Purplish Copper Tharsalea helloides AKA Lycaena helloides Size: 1 - 1.25 inches wingspan ​ Key ID features: Male above brownish with purple iridescence when fresh. Female above light orange with black spots and wide brown borders. Male and female HW below lavender with submarginal orange zigzag line (females darker); FW below with black spots. ​ Similar species: Lilac-bordered has distinctive two-toned HW below. Other coppers have white or grayish undersides. Host plant: Docks (Rumex ) and Knotweeds (Polygonum). ​ Habitat: Wide variety of habitats . ​ Range: All of Oregon. ​ Season: Late April to mid-October ​ 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 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, submarginal row of yellow chevrons and brown to black marginal band. HW above has yellow patches adjacent to dark marginal band. Below dark gray to black, with lighter gray striations, and prominent white flattened "v" (pointed at the bottom, often looking like a gull in flight) with no hooks 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. ​ 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

Gallery Prev Next Mt. Hebo, Tillamook Co, August 13, ssp. hippolyta Zerene Fritillary Argynnis zerene AKA Speyeria zerene Size: Up to 2.75 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. Variable below depending on subspecies and location. Often with light tan-brown "disc" on HW with large silvery-white oval spots and warm tan submarginal band. Can also have pinkish/purplish hindwing below, with smaller discal spots than Hydaspe. ​ Similar species: Coronis Fritillary is usually paler above and larger. Callippe Fritillary has more elongated silver spots in the disc below. Hydaspe has larger, more rounded discal spots. ​ Host plant: Violet (Viola ) species, varying by region of state . ​ Habitat: Varies greatly by subspecies, from coastal headlands, to grassy summits, riparian areas and meadows. ​ Range: Throughout mountainous areas of eastern and southwestern Oregon. ​ Season: Early June to late September. ​ Abundance: Uncommon Conservation Status: Coastal subspecies S. z. hippolyta critically imperiled in OR, Federally listed as Threatened.

Gallery Prev Next Smith Rocks State Pk, Jefferson Co, May 2 Desert Marble Euchloe lotta Size: 1.25 - 1.5 inches wingspan ​ Key ID features: Above, pearly-white with black pattern on FW tip and thin black rectangle in forewing cell with no white scaling. Below, green marbling is darker, sometimes bluish and grainy. ​ Similar species: Large Marble is notably larger. California Marble lacks pearly or shiny look to white areas, and is found only in and near Josephine County. Host plant: Tall tumblemustard, tansy mustard, rockcress and other crucifers. ​ ​ Habitat: Primarily arid bottomlands, including desert flats, sage-steppe, bitterbrush plateaus, Pinyon-Juniper forest, and dry gullies. ​ Range: Most of eastern Oregon except Blue, Aldrich and Wallowa Mtns. ​ Season: Late March to late June ​ Abundance: Common Conservation Status: Secure

Swallowtails, Whites & Sulphurs Click photo for more details Clodius Parnassian Parnassius clodius Western Tiger Swallowtail Papilio rutulus Western Sulphur Colias occidentalis ​ Julia's Orangetip Anthocharis julia ​ Pine White Neophasia menapia ​ Checkered White Pontia protodice ​ Mountain Parnassian Parnassius smintheus Pale Swallowtail Papilio eurymedon ​ Queen Alexandra's Sulphur Colias alexandra Gray Marble Anthocharis lanceolata ​ Mustard White Pieris marginalis ​ Western White Pontia occidentalis ​ Oregon Swallowtail Papilio machaon ​ Two-tailed Swallowtail Papilio multicaudata Pelidne Sulphur Colias pelidne Large Marble Euchloe ausonides ​ Cabbage White Pieris rapae ​ Anise Swallowtail Parnassius zelicaon Clouded Sulphur Colias philodice ​ Pink-Edged Sulphur Colias interior California Marble Euchloe hyantis ​ Becker's White Pontia beckerii ​ Indra Swallowtail Papilio indra ​ Orange Sulphur Colias eurytheme ​ Sara's Orangetip Anthocharis sara ​ Desert Marble Euchloe lotta ​ Spring White Pontia sisymbrii ​

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

Brushfoot Butterflies Click photo for more details Monarch Monarch Danaus plexippus Zerene Fritillary Argynnis zerene Mormon Fritillary Argynnis mormonia American Lady Vanessa virginiensis Compton Tortoiseshell Nymphalis l-album Hoary Comma Polygonia gracilis Chalcedona Checkerspot Euphydryas chalcedona Sagebrush Checkerspot Chlosyne acastus Northern Crescent Phyciodes cocyta Sylvan Wood Nymph Cercyonis silvestris Silver-bordered Fritillary Boloria selene Callippe Fritillary Argynnis callippe Viceroy Viceroy Limenitis archippus Painted Lady Vanessa cardui California Tortoiseshell Nymphalis californica Green Comma Polygonia faunus Snowberry Checkerspot Euphydryas colon Northern Checkerspot Chlosyne palla Field Crescent Phyciodes pulchella Small Wood Nymph Cercyonis oetus Pacific Fritillary Boloria epithore Great Basin Fritillary Argynnis egleis Weidemeyer's Admiral Limenitis weidemeyerii West Coast Lady Vanessa annabella Mourning Cloak Nymphalis antiopa Gray Buckeye Junonia grisea Anicia Checkerspot Euphydryas anicia California Crescent Phyciodes orseis Common Ringlet Coenonympha california Common Alpine Erebia epipsodea Great Spangled Fritillary Argynnis cybele Northwestern Fritillary Argynnis hesperis Lorquin's Admiral Limenitis lorquini Red Admiral Vanessa atalanta Satyr Comma Polygonia satyrus Gillett's Checkerspot Euphydryas gillettii Leanira Checkerspot Chlosyne leanira Pale Crescent Phyciodes pallida Common Wood Nymph Cercyonis pegala Riding's Satyr Neominois ridingsii Coronis Fritillary Argynnis coronis Hydaspe Fritillary Argynnis hydaspe California Sister Adelpha californica Milbert's Tortoiseshell Aglais milberti Oreas Comma Polygonia oreas Edith's Checkerspot Euphydryas editha Hoffmann's Checkerspot Chlosyne hoffmanni Mylitta Crescent Phyciodes mylitta Great Basin Wood Nymph Cercyonis sthenele Great Arctic Oeneis nevadensis

Gallery Prev Next Doral View Little Groundhog Man, Lane Co, July 22 - female Eastern Tailed-Blue Cupido comyntas Size: 0.75 - 1.0 inches wingspan ​ Key ID features: Male bright blue above, female dark gray or gray-brown, with coppery-green iridescence when fresh. HW with white fringe and marginal band of black spots with gray borders. Below, gray or bluish-gray, with black spots rimmed with white, variable marginal band of spots and chevrons, orange patches next to small white-tipped tails. Usually shows black cell-end bar on FW above and below. ​ Similar species: Western Tailed-Blue tends to be whiter below and usually lacks black cell end bar on the FW above. Host plant: Many species in the pea family including lupines, vetches and clovers . ​ Habitat: Often in weedy, disturbed habitats, but also in native wet meadows and riparian areas. ​ ​ Range: West of the Cascade Range, Wallowa Mtns and NE Blue Mtns. ​ Season: Early April to early August ​ Abundance: Common Conservation Status: Secure