Butterflies of Mount Diablo All Brushfoot (Nymphalidae) Gossamer Wing (Lycaenidae) Riodinidae Skippers (Hesperiidae) Swallowtails (Papilionidae) Whites and Sulphurs (Pieridae) Acmon Blue American Lady Anise Swallowtail Behr’s Silvery Blue Boisduval’s Blue Cabbage White California Hairstreak California Pipevine Swallowtail California Ringlet California Sister California Tortoiseshell Callippe Fritillary Checkered White Columbian Skipper Common Buckeye Common Checkered Skipper Common Sootywing Common Wood Nymph Coronis Fritillary Echo Azure Edith’s Checkerspot Eufala Skipper Fiery Skipper Gold Hunter’s Hairstreak Golden Hairstreak Gorgon Copper Gray Hairstreak Gray Marble Great Basin Wood Nymph Great Copper Great Purple Hairstreak Greenish Blue Gulf Fritillary Hedgerow Hairstreak Large Marble Leanira Checkerspot Lindsey’s Skipper Lorquin’s Admiral Lotus Hairstreak Margined White Marine Blue Monarch Mormon Metalmark Moss’ Elfin Mountain Mahogany Hairstreak Mournful Duskywing Mourning Cloak Muir’s Hairstreak Mylitta Crescent Northern Checkerspot Northern White-Skipper Orange Sulphur Painted Lady Pale Swallowtail Propertius Duskywing Purplish Copper Red Admiral Rural Skipper Sachem Sandhill Skipper Sara Orangetip Satyr Comma Silvery Blue Sleepy Duskywing Small Veined White Tailed Copper Thicket Hairstreak Two Tailed Swallowtail Umber Skipper Variable Checkerspot West Coast Lady Western Brown Elfin Western Tiger Swallowtail Woodland Skipper