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Insects & Arthropods of Riverside, CA

The insects & arthropods most often spotted near Riverside, ranked by recent research-grade observations.

53,790
recent observations
50
species listed
50
insects & arthropods

Naturalists have logged 53,790 research-grade observations across the 50 most-recorded species near Riverside. The most frequently seen is the Western Honey Bee, with 6,674 recorded sightings.

Most-observed insects & arthropods near Riverside

Western Honey Bee
Apis mellifera
6,674 observations
Monarch
Danaus plexippus
3,281 observations
Gray Bird Grasshopper
Schistocerca nitens
2,326 observations · iNaturalist
Arizona Mantis
Stagmomantis limbata
2,226 observations · iNaturalist
Brown Widow
Latrodectus geometricus
1,950 observations · iNaturalist
Fiery Skipper
Hylephila phyleus
1,792 observations · iNaturalist
Seven-spotted Lady Beetle
Coccinella septempunctata
1,620 observations
Asian Lady Beetle
Harmonia axyridis
1,519 observations
Convergent Lady Beetle
Hippodamia convergens
1,419 observations
Red-shouldered Bug
Jadera haematoloma
1,384 observations · iNaturalist
Figeater Beetle
Cotinis mutabilis
1,256 observations · iNaturalist
White-lined Sphinx
Hyles lineata
1,225 observations · iNaturalist
Western Black Widow
Latrodectus hesperus
1,212 observations
Western Giant Swallowtail
Heraclides rumiko
1,155 observations · iNaturalist
Painted Lady
Vanessa cardui
1,151 observations
Gulf Fritillary
Dione vanillae
1,050 observations · iNaturalist
Small White
Pieris rapae
1,031 observations
Woolly Darkling Beetle
Eleodes osculans
951 observations · iNaturalist
Dotted Paropsine Leaf Beetle
Paropsis atomaria
938 observations · iNaturalist
Gray Hairstreak
Strymon melinus
921 observations
Argentine Ant
Linepithema humile
890 observations
Diabolical Ironclad Beetle
Phloeodes diabolicus
874 observations · iNaturalist
Marine Blue
Leptotes marina
865 observations · iNaturalist
Mourning Cloak
Nymphalis antiopa
815 observations
Tropical House Cricket
Gryllodes sigillatus
806 observations · iNaturalist
Valley Carpenter Bee
Xylocopa sonorina
761 observations · iNaturalist
Flame Skimmer
Libellula saturata
743 observations · iNaturalist
Checkered White
Pontia protodice
721 observations · iNaturalist
Pallid-winged Grasshopper
Trimerotropis pallidipennis
715 observations
Western Tiger Swallowtail
Papilio rutulus
692 observations
Gray Buckeye
Junonia grisea
686 observations · iNaturalist
Guinea Paper Wasp
Polistes exclamans
666 observations
Behr's Metalmark
Apodemia virgulti
657 observations · iNaturalist
Mediterranean Mantis
Iris oratoria
600 observations · iNaturalist
Ligated Furrow Bee
Halictus ligatus
598 observations · iNaturalist
Leafhopper Assassin Bug
Zelus renardii
575 observations · iNaturalist
Rough Harvester Ant
Pogonomyrmex rugosus
568 observations · iNaturalist
Umber Skipper
Lon melane
563 observations · iNaturalist
Vivid Dancer
Argia vivida
561 observations · iNaturalist
Acmon Blue
Icaricia acmon
546 observations · iNaturalist
Thick-legged Hover Fly
Syritta pipiens
524 observations · iNaturalist
Large-tailed Aphideater
Eupeodes volucris
515 observations · iNaturalist
California Sister
Adelpha californica
501 observations
Buttonhook Leafbeetle Jumping Spider
Sassacus vitis
492 observations · iNaturalist
Oblique Streaktail
Allograpta obliqua
485 observations · iNaturalist
Spotless Lady Beetle
Cycloneda sanguinea
471 observations · iNaturalist
Western Yellowjacket
Vespula pensylvanica
466 observations · iNaturalist
Yellow-faced Bumble Bee
Bombus vosnesenskii
465 observations · iNaturalist
Margined Calligrapher
Toxomerus marginatus
453 observations · iNaturalist
False Black Widow
Steatoda grossa
435 observations

Built from recent research-grade iNaturalist observations. Identifications are community-sourced and may occasionally be wrong, and the ranking reflects where people record and photograph wildlife, so a species seen often here is not necessarily rare elsewhere. Some plants and animals are only out in certain seasons. Treat this as a lively snapshot of what people are finding, not a formal checklist.

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