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Butterflies and Moths of San Mateo County, California

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Skippers (Hesperiidae)

Spread-wing Skippers (Pyrginae)

 Northern Cloudywing (Thorybes pylades)
 Propertius Duskywing (Erynnis propertius)
 Mournful Duskywing (Erynnis tristis)
 Pacuvius Duskywing (Erynnis pacuvius)
 Two-banded Checkered-Skipper (Pyrgus ruralis)
 Small Checkered-Skipper (Pyrgus scriptura)
 Common Checkered-Skipper (Pyrgus communis)
 Northern White-Skipper (Heliopetes ericetorum)

Grass Skippers (Hesperiinae)

 Fiery Skipper (Hylephila phyleus)
 Juba Skipper (Hesperia juba)
 Western Branded Skipper (Hesperia colorado)
 Columbian Skipper (Hesperia columbia)
 Lindsey's Skipper (Hesperia lindseyi)
 Sachem (Atalopedes campestris)
 Sandhill Skipper (Polites sabuleti)
 Woodland Skipper (Ochlodes sylvanoides)
 Rural Skipper (Ochlodes agricola)
 Umber Skipper (Poanes melane)
 Dun Skipper (Euphyes vestris)
 Eufala Skipper (Lerodea eufala)

Parnassians and Swallowtails (Papilionidae)

Parnassians (Parnassiinae)

 Clodius Parnassian (Parnassius clodius)

Swallowtails (Papilioninae)

 Pipevine Swallowtail (Battus philenor)
 Anise Swallowtail (Papilio zelicaon)
 Western Tiger Swallowtail (Papilio rutulus)
 Pale Swallowtail (Papilio eurymedon)

Whites and Sulphurs (Pieridae)

Whites (Pierinae)

 Checkered White (Pontia protodice)
 Spring White (Pontia sisymbrii)
 Cabbage White (Pieris rapae)
 Margined White (Pieris marginalis)
 Large Marble (Euchloe ausonides)
 Pacific Orangetip (Anthocharis sara)

Sulphurs (Coliadinae)

 Orange Sulphur (Colias eurytheme)
 California Dogface (Zerene eurydice)
 Cloudless Sulphur (Phoebis sennae)
 Mimosa Yellow (Pyrisitia nise)
 Dainty Sulphur (Nathalis iole)

Gossamer-wing Butterflies (Lycaenidae)

Coppers (Lycaeninae)

 Tailed Copper (Lycaena arota)
 Great Copper (Lycaena xanthoides)
 Gorgon Copper (Lycaena gorgon)
 Blue Copper (Lycaena heteronea)
 Purplish Copper (Lycaena helloides)

Hairstreaks (Theclinae)

 Golden Hairstreak (Habrodais grunus)
 Great Purple Hairstreak (Atlides halesus)
 Western Green Hairstreak (Callophrys affinis)
 Coastal Green Hairstreak (Callophrys dumetorum)
 Thicket Hairstreak (Callophrys spinetorum)
 Brown Elfin (Callophrys augustinus)
 Moss' Elfin (Callophrys mossii)
 Western Pine Elfin (Callophrys eryphon)
 California Hairstreak (Satyrium californica)
 Sylvan Hairstreak (Satyrium sylvinus)
 Gold-hunter's Hairstreak (Satyrium auretorum)
 Mountain Mahogany Hairstreak (Satyrium tetra)
 Hedgerow Hairstreak (Satyrium saepium)
 Gray Hairstreak (Strymon melinus)

Blues (Polyommatinae)

 Western Pygmy-Blue (Brephidium exilis)
 Western Tailed-Blue (Cupido amyntula)
 Echo Azure (Celastrina echo)
 Silvery Blue (Glaucopsyche lygdamus)
 Pacific Dotted-Blue (Euphilotes enoptes)
 Reakirt's Blue (Echinargus isola)
 Melissa Blue (includes Karner Blue) (Plebejus melissa)
 Greenish Blue (Plebejus saepiolus)
 Boisduval's Blue (Plebejus icarioides)
 Acmon Blue (Plebejus acmon)

Metalmarks (Riodinidae)

 Mormon Metalmark (Apodemia mormo)

Brush-footed Butterflies (Nymphalidae)

Milkweed Butterflies (Danainae)

 Monarch (Danaus plexippus)

Longwings (Heliconiinae)

 Gulf Fritillary (Agraulis vanillae)
 Coronis Fritillary (Speyeria coronis)
 Zerene Fritillary (Speyeria zerene)
 Callippe Fritillary (Speyeria callippe)
 Unsilvered Fritillary (Speyeria adiaste)
 Pacific Fritillary (Boloria epithore)

True Brushfoots (Nymphalinae)

 Leanira Checkerspot (Chlosyne leanira)
 Northern Checkerspot (Chlosyne palla)
 Mylitta Crescent (Phyciodes mylitta)
 Field Crescent (Phyciodes pulchella)
 Edith's Checkerspot (Euphydryas editha)
 Chalcedon Checkerspot (Euphydryas chalcedona)
 Common Buckeye (Junonia coenia)
 Satyr Comma (Polygonia satyrus)
 Green Comma (Polygonia faunus)
 Gray Comma (Polygonia progne)
 Oreas Comma (Polygonia oreas)
 Milbert's Tortoiseshell (Aglais milberti)
 Compton Tortoiseshell (Nymphalis vaualbum)
 Mourning Cloak (Nymphalis antiopa)
 California Tortoiseshell (Nymphalis californica)
 Red Admiral (Vanessa atalanta)
 Painted Lady (Vanessa cardui)
 West Coast Lady (Vanessa annabella)
 American Lady (Vanessa virginiensis)

Admirals and Relatives (Limenitidinae)

 Lorquin's Admiral (Limenitis lorquini)
 Adelpha californica (Adelpha californica)

Satyrs and Wood-Nymphs (Satyrinae)

 Common Ringlet (Coenonympha tullia)
 Common Wood Nymph (Cercyonis pegala)

Wild Silk Moths (Saturniidae)

Buck and Io Moths (Hemileucinae)

 Western sheepmoth (Hemileuca eglanterina)

Giant Silkworm Moths (Saturniinae)

 Ceanothus silkmoth (Hyalophora euryalus)
 Mendocino saturnia moth (Saturnia mendocino)

Sphinx Moths, Hawkmoths (Sphingidae)

Sphinginae (Sphinginae)

 Carolina sphinx (Manduca sexta)
 One-eyed sphinx (Smerinthus cerisyi)
 Sequoia sphinx (Sphinx sequoiae)

Macroglossinae (Macroglossinae)

 White-lined sphinx (Hyles lineata)
 Clark's sphinx (Proserpinus clarkiae)

Tiger Moths and Lichen Moths (Arctiidae)

Lichen Moths (Lithosiinae)

 Cisthene deserta (Cisthene deserta)
 Cisthene faustinula (Cisthene faustinula)
 Cisthene liberomacula (Cisthene liberomacula)
 Little White Lichen Moth (Clemensia albata)

Tiger Moths (Arctiinae)

 Ornate Tiger Moth (Grammia ornata)
 Edwards' Glassywing (Hemihyalea edwardsii)
 Leptarctia californiae (Leptarctia californiae)
 Silver-Spotted Tiger Moth (Lophocampa argentata)
 Ranchman's Tiger Moth (Platyprepia virginalis)
 Wandering Tiger Moth (Spilosoma vagans)

Syntomine Moths (Syntominae)

 Ctenucha multifaria (Ctenucha multifaria)
 Red-Shouldered Ctenucha (Ctenucha rubroscapus)

Owlet Moths, Miller Moths (Noctuidae)

Heliothentine Moths, Flower Moths (Heliothentinae)

 Schinia pulchripennis (Schinia pulchripennis)

Oecophorid Moths (Oecophoridae)

Depressariine Moths (Depressariinae)

 Agonopterix alstroemeriana (Agonopterix alstroemeriana)
 Agonopterix chrautis (Agonopterix chrautis)
 Agonopterix clarkei (Agonopterix clarkei)
 Agonopterix fusciterminella (Agonopterix fusciterminella)
 Agonopterix nervosa (Agonopterix nervosa)
 Agonopterix oregonensis (Agonopterix oregonensis)
 Agonopterix sabulella (Agonopterix sabulella)
 Exaeretia nechlys (Exaeretia nechlys)
 Exaeretia thoracefasciella (Exaeretia thoracefasciella)
 Exaeretia thoracenigraeella (Exaeretia thoracenigraeella)

Stenomatine Moths (Stenomatinae)

 Antaeotricha manzanitae (Antaeotricha manzanitae)

Oecophorine Moths (Oecophorinae)

 Borkhausenia nefrax (Borkhausenia nefrax)
 White-shouldered House Moth (Endrosis sarcitrella)
 Brown House Moth (Hofmannophila pseudospretella)
 Pleurotus albastrigulella (Pleurotus albastrigulella)
 Rectiostoma fernaldella (Rectiostoma fernaldella)

Ethmiine Moths (Ethmiinae)

 Ethmia albitogata (Ethmia albitogata)
 Ethmia arctostaphylella (Ethmia arctostaphylella)
 Ethmia brevistriga (Ethmia brevistriga)
 Pyramidobela angelaurm (Pyramidobela angelaurm)

Erebid Moths (Erebidae)

Catocaline Moths (Catocalinae)

 Black Witch (Ascalapha odorata)