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

Here you will find the most valuable field guides and printed information sources for butterflies in Oregon and Lane County. Resources: Books New All-Color 5th Edition Finding Lane County Butterflies The new 5th Edition is a significant overhaul of the original book, with 5 new important sites added, 45 new color photos, 10 new color maps, and hundreds of clarifications and improvements throughout. It now includes 30 of the best sites for butterflies in Lane County (and a few just over the line in Linn County). For each site, it describes when to go, how to get there, and which species you are likely to find there. Using this guide, you can, with some luck, find most of Lane County's more than 100 species. Order yours now from the Lane County Butterfly Club. 100% of sales proceeds benefit the Lane County Butterfly Club. Butterflies of Oregon: An Atlas Honoring John Hinchliff by Jeffrey C. Miller, Paul C. Hammond, Dana N.R. Ross and Neil H. Bjorklund This 2-volume set raises the standard for presenting the current state of our knowledge about Oregon's butterfly species and subspecies and where they are found in our state. Volume 1 (Species Distribution) 218 pages 8.5" x 11", 177 maps, 354 color photos Contains full color distribution maps for each species, and each subspecies. Volume 2 (Synthesis) 290 pages 8.5" x 11", 45 full color maps,108 color photos A virtual road tour for exploring Oregon butterflies Discussion of relationship between butterflies and Oregon's environments Exploration of site record counts, and where they do and don't occur Discussion of patterns in butterfly distribution Discussion of caterpillar foodplant relationships Two volume set $95 plus shipping. To order, send an email to: oregonbutterflyatlas2026@gmail.com Anchor Atlas Butterflies of Lane County When it was first released in 2002, this pocket-sized field ID guide to the butterflies of Lane County, Oregon was the first of its kind. Other similar "pocket guides" have appeared around the country as publishers realize that people don't want to carry around a 5-pound book in the field. This guide will be replaced by an all new field identification guide that covers all of the Willamette Valley and adjoining foothills-planned to be released in 2026. Sold through the Lane County Butterfly Club. Proceeds from sales benefit the Lane County Butterfly Club. Available from Lane County Butterfly Club . This is the definitive guide for identifying the butterflies of Oregon and Washington. It's chock-full of information about each species, with maps, history, biological information and more. It won't fit in your pocket, but you'll want a copy for reference anyway. Available from Amazon.com . Butterflies of the Pacific Northwest By Robert Michael Pyle and Caitlin LaBar. This is the latest and most comprehensive guide for identifying the butterflies of Oregon and Washington. It's chock-full of information about each species, with maps, history, biological information and more. It won't fit in your pocket, but you'll definitely want a copy anyway. Available from Amazon.com . Butterflies of the Pacific Northwest This is the definitive guide for identifying the butterflies of Oregon and Washington. It's chock-full of information about each species, with maps, history, biological information and more. It won't fit in your pocket, but you'll want a copy for reference anyway. Available from Amazon.com . Butterflies of Oregon Their Taxonomy, Distribution, and Biology By Andrew Warren. This thorough scientific work provides the most in-depth coverage of Oregon's butterfly species and set the groundwork for taxonomy studies and books that followed it. For a deeper dive into Oregon's butterflies, this is your "go to" source. Available from Amazon.com . Warren Book Pocket Guide to the Butterflies of Washington, 3rd ed By Caitlin LaBar. This is a great field guide for identifying the butterflies of Washington. So small and light there's no reason not to take it into the field with you! Available from Amazon.com .

Photos, flight season, distribution and host plant information, conservation status, and identification tips for the Common Checkered Skipper. Gallery Prev Next Illinois River Rd, Josephine Co, April 23 Common Checkered Skipper Burnsius communis Size: Up to 1 inch wingspan Key ID features: Above, very dark brown, with gray shading basally on FW, boldly checked fringes and numerous bright white patches (longer than on Two-Banded) . Overall lighter than Two-Banded due to more white patches. Below large white patches, with jagged brown bands, edged in darker brown. Similar species: Two-Banded Checkered Skipper is darker, has fewer white spots above and less white below. Host plant: Various species in the mallow family. Habitat: Found in a wide variety of habitats, both disturbed and undisturbed. Range: All of Oregon except the far NW corner. Season: Mid-April to mid-September Abundance: Common Conservation Status: Secure

Photos, flight season, distribution and host plant information, conservation status, and identification tips for the Red Admiral butterfly. Gallery Prev Next Sand Cr, Klamath Co, June 25 Red Admiral Vanessa atalanta AKA Red Admirable Size: Up to 2.5 inch wingspan Key ID features: Unmistakable. Above black with red-orange band across FW, and white bar and spots near FW tip. HW above black with orange-red marginal band with small black spots and two black ringed blue spots at the anal angle. HW below a mosaic of brown, gray and black, with a thin paleblue submarginal line. FW below bold pinkish orange band as above, below band mostly black, above band black with white bar and spots and blue ring, wingtip mottled grays and browns with small spots. Similar species: Unlike any other species. Hostplant: Stinging nettle (Urtica dioica ) . Habitat: May be found in any habitat. Range: Throughout Oregon . Season: Any time of year, but mostly May to October. Abundance: Uncommon Conservation Status: Secure

Butterflies of Oregon has exquisite photos and information about all of Oregon's native butterfly species, covering the identification, distribution and biology of each species. A lively blog provides seasonal stories and updates from the field. 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

Photos, flight season, distribution and host plant information, conservation status, and identification tips for the Propertius Duskywing butterfly. Gallery Prev Next W Boundary Rd, Lane Co, April 26 - female Propertius Duskywing Erynnis propertius Size: Up to 1.75 inch wingspan Key ID features: Our largest duskywing. Above, FW gray-brown with frosted bands and spots, 3-6 hyaline (glassy, translucent) spots on FW . FW often appears banded, especially in females. 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: Other duskywings are smaller, and generally less boldy marked. Host plant: Oak species, especially Oregon White Oak (Quercus garryana ), and golden chinkapin (Chrysolepis chrysophylla ) at higher elevations. Habitat: Open areas near oaks or chinkapin. Range: Western Oregon from Cascade Crest to crest of Coast Range. Season: Late March to mid-July Abundance: Common Conservation Status: Secure

Photos, flight season, distribution and host plant information, conservation status, and identification tips for the Mustard White butterfly. Gallery Prev Next Plunkett Cr, Benton Co, July 31 Mustard White Pieris marginalis AKA Margined White Size: 1.25 - 1.5 inches wingspan Key ID features: Above milky-white, with black shading basally (near the thorax). Below, hindwing veins faintly lined with brownish black bands, bolder in spring. Summer brood males usually nearly pure white. Similar species: Cabbage White has black spot in center of FW. Host plant: Cresses, toothworts and other mustard species. Habitat: Openings in moist forests, usually coniferous. Range: Throughout western Oregon west of the Cascades, and in Ochoco, Wallowa Blue, and Warner Mtns. Season: Late March to early October Abundance: Common Conservation Status: Secure

Photos, flight season, distribution and host plant information, conservation status, and identification tips for the Leanira Checkerspot butterfly. Gallery Prev Next Alvord Basin, Harney Co, May 31 - ssp. basinensis Leanira Checkerspot Chlosyne leanira Size: Up to 2 inch wingspan Key ID features: Two distinct subspecies . Ssp. oregonensis is black above, with pale ivory spots, sometimes with red spots on FW tips. Below, FW orange with pale ivory spots, and submarginal band of ivory and black, often with a gap. HW below white with black veins and submarginal band of white spots surrounded by black. Ssp. basinensis is orange above with black veins, submarginal band of pale orange spots. Below similar to oregonensis , with bolder, wider black border to submarginal spot band. Similar species: Below, neither subspecies is similar to other Oregon butterfly species. Above, C. l. oregonensis is similar to some small, dark individuals of Snowberry Checkerspot, note pattern below. Host plant: Paintbrush species (Castilleja ) . Habitat/Range: Ssp oregonensis found in canyons and hillsides near streams in SW Oregon. Ssp. basinensis found in desert hills and sage flats in SE Oregon. Season: Early May 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 Pacific Fritillary butterfly. Gallery Prev Next Butte Disappointment, Lane Co, May 24 Pacific Fritillary Boloria selene AKA Western Meadow Fritillary Size: Up to 1.75 inch wingspan Key ID features: Above orange with thin black veins, black scaling near the body, black irregular lines inwardly, and bands of black spots and submarginal chevrons that point toward wing edge. Below HW has cream and orange patches edged in dark brown-orange on inner half, outer half is vague pattern of mauve, lavender, and brownish spots. Similar species: Silver-Bordered has very limited range, bolder black marginal pattern above with submarginal triangles pointing inward, bolder pattern on HW below. Host plant: Violets (Viola ) . Habitat: Meadows and lush open habitats, forest clearings, riparian areas. Range: Found throughout western Oregon, in Klamath Mtns, Warner Mtns, Wallowa Mtns and Blue Mtns. Season: Late March to L September. Abundance: Common Conservation Status: Secure .

Photos, flight season, distribution and host plant information, conservation status, and identification tips for the Hoffman's Checkerspot butterfly. Gallery Prev Next Bachelor Mtn, Linn Co, July 13 Hoffmann's Checkerspot Chlosyne hoffmanni Size: 1.25 to 1.75 inch wingspan Key ID features: Above, bands of orange and yellow-orange, separated by black lines and patches . Median band usually lighter. Basal 1/3 of HW above is mostly black with little orange. Below bands of off-white and brick red with black veins and edges. Red spots in postmedian band often longer than in similar species. Similar species: Northern Checkerspot often does not have the large black area on the basal HW above, and below post-median band spots are generally shorter than in Hoffman's. On Northern Checkerspot, the orange patches on the dorsal forewing are more distinct and smaller. On Hoffmann's, the orange bars in the middle of the forewing are much longer, and often have a "smeared" look, a gradient of shades of orange. Hostplant: Asters, including western showy aster (Eurybia conspicua ) and Cascade aster (Eucephalus ledophyllus ) . Habitat: Moist montane meadows, canyons, streamsides, clearings in conifer forests. Range: Cascade Range above 1000 feet. Season: Early May to early September Abundance: Common Conservation Status: Secure

Directory with photos and links for all of Oregon's butterflies in the swallowtail, white and sulphur families. 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 Papilio 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