butterflies

superfamily Papilionoidea

Member of butterflies and moths (order Lepidoptera)
insects (class Insecta)
hexapods (subphylum Hexapoda)
arthropods (phylum Arthropoda)
animals (kingdom Animalia)

brush-footed butterflies
family Nymphalidae

brush-footed butterflies
family Nymphalidae

often stand on four legs while the two front legs are curled up
front legs often have a brush-like set of hairs

gossamer-winged butterflies
family Lycaenidae

gossamer-winged butterflies
family Lycaenidae

often have hairy antenna-like tails with black and white rings

common swallowtails
genus Papilio

common swallowtails
genus Papilio

has a tail-like extension from each hindwing

whites, yellows, and sulphurs
family Pieridae

whites, yellows, and sulphurs
family Pieridae

usually white, yellow, or orange, often with black spots

skippers
family Hesperiidae

skippers
family Hesperiidae

often moth-like in appearcance: stocky body, short wings, large eyes
wings rest angled up or spread, rarely straight up
antenna club often bent slightly back toward the body

metalmark butterflies
family Riodinidae

37 observed taxons / 7 unobserved taxons / 5 keys

Chris’s observations: 205 (184 are research grade)

Locations:

Months:

Jan.: 7
Feb.: 9
Mar.: 21
Apr.: 46
May: 40
Jun.: 24
Jul.: 21
Aug.: 11
Sep.: 7
Oct.: 9
Nov.: 8
Dec.: 2

For more details, use advanced search.

Taxon info: iNaturalist – BugGuide

Bay Area species: iNaturalist