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Western Honey Bee
Apis mellifera
90,264 observations
Monarch
Danaus plexippus
60,387 observations
Seven-spotted Lady Beetle
Coccinella septempunctata
27,654 observations
Convergent Lady Beetle
Hippodamia convergens
26,300 observations
Fiery Skipper
Hylephila phyleus
25,199 observations
Gray Buckeye
Junonia grisea
24,565 observations
White-lined Sphinx
Hyles lineata
23,807 observations
Painted Lady
Vanessa cardui
23,475 observations
Asian Lady Beetle
Harmonia axyridis
22,448 observations
Yellow-faced Bumble Bee
Bombus vosnesenskii
21,121 observations
Arizona Mantis
Stagmomantis limbata
21,121 observations
Gray Bird Grasshopper
Schistocerca nitens
20,547 observations
Small White
Pieris rapae
19,608 observations
Gulf Fritillary
Dione vanillae
19,184 observations
Variable Checkerspot
Euphydryas chalcedona
18,683 observations
Mourning Cloak
Nymphalis antiopa
17,062 observations
Anise Swallowtail
Papilio zelicaon
16,866 observations
Umber Skipper
Lon melane
16,018 observations
Western Tiger Swallowtail
Papilio rutulus
15,746 observations
Gray Hairstreak
Strymon melinus
14,813 observations
Acmon Blue
Icaricia acmon
14,202 observations
Vivid Dancer
Argia vivida
14,016 observations
Pipevine Swallowtail
Battus philenor
13,807 observations
California Gall Wasp
Andricus quercuscalifornicus
13,620 observations
California Sister
Adelpha californica
13,554 observations
Black-tailed Bumble Bee
Bombus melanopygus
12,412 observations
Flame Skimmer
Libellula saturata
11,821 observations
Red Admiral
Vanessa atalanta
11,429 observations
Variegated Meadowhawk
Sympetrum corruptum
11,201 observations
Figeater Beetle
Cotinis mutabilis
10,795 observations
Marine Blue
Leptotes marina
10,790 observations
Valley Carpenter Bee
Xylocopa sonorina
10,325 observations
Lorquin's Admiral
Limenitis lorquini
10,231 observations
Invasive
Argentine Ant
Linepithema humile
10,225 observations
West Coast Lady
Vanessa annabella
10,197 observations
California Tortoiseshell
Nymphalis californica
9,405 observations
Western Yellowjacket
Vespula pensylvanica
9,350 observations
Spotted Cucumber Beetle
Diabrotica undecimpunctata
9,272 observations
Common Ringlet
Coenonympha california
9,157 observations
Spotless Lady Beetle
Cycloneda sanguinea
9,138 observations
Invasive
Harlequin Bug
Murgantia histrionica
9,066 observations
Mylitta Crescent
Phyciodes mylitta
8,952 observations
Invasive
Dotted Paropsine Leaf Beetle
Paropsis atomaria
8,852 observations
Pale Swallowtail
Papilio eurymedon
8,553 observations
European Mantis
Mantis religiosa
8,389 observations
Pallid-winged Grasshopper
Trimerotropis pallidipennis
8,070 observations
Echo Azure
Celastrina echo
7,474 observations
Oblique Streaktail
Allograpta obliqua
7,442 observations
Margined Calligrapher
Toxomerus marginatus
7,419 observations
Checkered White
Pontia protodice
7,368 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)
- Convergent Lady Beetle (Hippodamia convergens)
- Fiery Skipper (Hylephila phyleus)
- Gray Buckeye (Junonia grisea)
- White-lined Sphinx (Hyles lineata)
- Painted Lady (Vanessa cardui)
- Asian Lady Beetle (Harmonia axyridis)
- Yellow-faced Bumble Bee (Bombus vosnesenskii)
- The most observed insect in California is Western Honey Bee (Apis mellifera), with 90,264 recorded observations.
- Some of the most commonly observed invasive insects in California include:
- Argentine Ant (Linepithema humile)
- Harlequin Bug (Murgantia histrionica)
- Dotted Paropsine Leaf Beetle (Paropsis atomaria)
- 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)