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Insects & Arthropods of Riverside, CA

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

53,559
recent observations
50
species listed
50
insects & arthropods

Naturalists have logged 53,559 research-grade observations across the 50 most-recorded species near Riverside. The most frequently seen is the Western Honey Bee, with 6,649 recorded sightings.

Most-observed insects & arthropods near Riverside

Western Honey Bee
Apis mellifera
6,649 observations
Monarch
Danaus plexippus
3,268 observations
Gray Bird Grasshopper
Schistocerca nitens
2,322 observations · iNaturalist
Arizona Mantis
Stagmomantis limbata
2,188 observations · iNaturalist
Brown Widow
Latrodectus geometricus
1,941 observations · iNaturalist
Fiery Skipper
Hylephila phyleus
1,790 observations · iNaturalist
Seven-spotted Lady Beetle
Coccinella septempunctata
1,614 observations
Asian Lady Beetle
Harmonia axyridis
1,508 observations
Convergent Lady Beetle
Hippodamia convergens
1,415 observations
Red-shouldered Bug
Jadera haematoloma
1,358 observations · iNaturalist
Figeater Beetle
Cotinis mutabilis
1,254 observations · iNaturalist
White-lined Sphinx
Hyles lineata
1,225 observations · iNaturalist
Western Black Widow
Latrodectus hesperus
1,207 observations
Painted Lady
Vanessa cardui
1,149 observations
Western Giant Swallowtail
Heraclides rumiko
1,149 observations · iNaturalist
Gulf Fritillary
Dione vanillae
1,039 observations · iNaturalist
Small White
Pieris rapae
1,031 observations
Woolly Darkling Beetle
Eleodes osculans
945 observations · iNaturalist
Dotted Paropsine Leaf Beetle
Paropsis atomaria
933 observations · iNaturalist
Gray Hairstreak
Strymon melinus
920 observations
Argentine Ant
Linepithema humile
886 observations
Diabolical Ironclad Beetle
Phloeodes diabolicus
871 observations · iNaturalist
Marine Blue
Leptotes marina
863 observations · iNaturalist
Mourning Cloak
Nymphalis antiopa
814 observations
Tropical House Cricket
Gryllodes sigillatus
806 observations · iNaturalist
Valley Carpenter Bee
Xylocopa sonorina
760 observations · iNaturalist
Flame Skimmer
Libellula saturata
729 observations · iNaturalist
Checkered White
Pontia protodice
720 observations · iNaturalist
Pallid-winged Grasshopper
Trimerotropis pallidipennis
715 observations
Western Tiger Swallowtail
Papilio rutulus
691 observations
Gray Buckeye
Junonia grisea
684 observations · iNaturalist
Guinea Paper Wasp
Polistes exclamans
666 observations
Behr's Metalmark
Apodemia virgulti
657 observations · iNaturalist
Ligated Furrow Bee
Halictus ligatus
597 observations · iNaturalist
Mediterranean Mantis
Iris oratoria
590 observations · iNaturalist
Leafhopper Assassin Bug
Zelus renardii
573 observations · iNaturalist
Rough Harvester Ant
Pogonomyrmex rugosus
567 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
514 observations · iNaturalist
California Sister
Adelpha californica
501 observations
Buttonhook Leafbeetle Jumping Spider
Sassacus vitis
489 observations · iNaturalist
Oblique Streaktail
Allograpta obliqua
485 observations · iNaturalist
Spotless Lady Beetle
Cycloneda sanguinea
468 observations · iNaturalist
Yellow-faced Bumble Bee
Bombus vosnesenskii
465 observations · iNaturalist
Western Yellowjacket
Vespula pensylvanica
465 observations · iNaturalist
Margined Calligrapher
Toxomerus marginatus
451 observations · iNaturalist
False Black Widow
Steatoda grossa
433 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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