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Western Honey Bee
Apis mellifera
97,680 observations
Monarch
Danaus plexippus
66,463 observations
Seven-spotted Lady Beetle
Coccinella septempunctata
28,413 observations
Gray Buckeye
Junonia grisea
27,852 observations
Arizona Mantis
Stagmomantis limbata
27,622 observations
Fiery Skipper
Hylephila phyleus
27,585 observations
Convergent Lady Beetle
Hippodamia convergens
27,280 observations
Painted Lady
Vanessa cardui
24,190 observations
White-lined Sphinx
Hyles lineata
24,186 observations
Asian Lady Beetle
Harmonia axyridis
24,058 observations
Yellow-faced Bumble Bee
Bombus vosnesenskii
22,092 observations
Gray Bird Grasshopper
Schistocerca nitens
21,840 observations
Gulf Fritillary
Dione vanillae
21,800 observations
Small White
Pieris rapae
21,190 observations
Anise Swallowtail
Papilio zelicaon
19,171 observations
Variable Checkerspot
Euphydryas chalcedona
18,871 observations
Mourning Cloak
Nymphalis antiopa
17,733 observations
Western Tiger Swallowtail
Papilio rutulus
17,092 observations
Umber Skipper
Lon melane
17,060 observations
Gray Hairstreak
Strymon melinus
16,805 observations
Acmon Blue
Icaricia acmon
15,188 observations
Vivid Dancer
Argia vivida
15,103 observations
California Gall Wasp
Andricus quercuscalifornicus
14,650 observations
Pipevine Swallowtail
Battus philenor
14,615 observations
California Sister
Adelpha californica
14,439 observations
Figeater Beetle
Cotinis mutabilis
12,959 observations
Flame Skimmer
Libellula saturata
12,926 observations
Black-tailed Bumble Bee
Bombus melanopygus
12,498 observations
Variegated Meadowhawk
Sympetrum corruptum
12,212 observations
Red Admiral
Vanessa atalanta
12,209 observations
Marine Blue
Leptotes marina
11,820 observations
Invasive
Dotted Paropsine Leaf Beetle
Paropsis atomaria
11,509 observations
Valley Carpenter Bee
Xylocopa sonorina
11,104 observations
Lorquin's Admiral
Limenitis lorquini
11,055 observations
West Coast Lady
Vanessa annabella
11,028 observations
Invasive
Argentine Ant
Linepithema humile
10,740 observations
California Tortoiseshell
Nymphalis californica
10,716 observations
Spotless Lady Beetle
Cycloneda sanguinea
10,645 observations
European Mantis
Mantis religiosa
10,297 observations
Spotted Cucumber Beetle
Diabrotica undecimpunctata
10,102 observations
Western Yellowjacket
Vespula pensylvanica
10,014 observations
Mylitta Crescent
Phyciodes mylitta
9,870 observations
Invasive
Harlequin Bug
Murgantia histrionica
9,634 observations
Common Ringlet
Coenonympha california
9,475 observations
Pale Swallowtail
Papilio eurymedon
8,937 observations
Western Giant Swallowtail
Heraclides rumiko
8,704 observations
Pallid-winged Grasshopper
Trimerotropis pallidipennis
8,615 observations
Large Milkweed Bug
Oncopeltus fasciatus
8,538 observations
European Paper Wasp
Polistes dominula
7,982 observations
Oblique Streaktail
Allograpta obliqua
7,966 observations
Frequently Asked Questions
- The 10 most common insects in California are:
- Western Honey Bee (Apis mellifera)
- Monarch (Danaus plexippus)
- Seven-spotted Lady Beetle (Coccinella septempunctata)
- Gray Buckeye (Junonia grisea)
- Arizona Mantis (Stagmomantis limbata)
- Fiery Skipper (Hylephila phyleus)
- Convergent Lady Beetle (Hippodamia convergens)
- Painted Lady (Vanessa cardui)
- White-lined Sphinx (Hyles lineata)
- Asian Lady Beetle (Harmonia axyridis)
- The most observed insect in California is Western Honey Bee (Apis mellifera), with 97,680 recorded observations.
- Some of the most commonly observed invasive insects in California include:
- Dotted Paropsine Leaf Beetle (Paropsis atomaria)
- Argentine Ant (Linepithema humile)
- Harlequin Bug (Murgantia histrionica)
- Some of the most commonly observed native insects in California include:
- Gray Buckeye (Junonia grisea)
- Yellow-faced Bumble Bee (Bombus vosnesenskii)
- Gray Bird Grasshopper (Schistocerca nitens)
- Umber Skipper (Lon melane)
- Acmon Blue (Icaricia acmon)