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Insects & Arthropods of Cosumnes River Preserve

The insects & arthropods most often spotted in Cosumnes River Preserve, ranked by recent research-grade observations.

1,641
recent observations
50
species listed
50
insects & arthropods

Naturalists have logged 1,641 research-grade observations across the 50 most-recorded species in Cosumnes River Preserve. The most frequently seen is the California Gall Wasp, with 196 recorded sightings.

Most-observed insects & arthropods in Cosumnes River Preserve

California Gall Wasp
Andricus quercuscalifornicus
196 observations · iNaturalist
Variegated Meadowhawk
Sympetrum corruptum
124 observations · iNaturalist
Lorquin's Admiral
Limenitis lorquini
106 observations
Gray Buckeye
Junonia grisea
87 observations · iNaturalist
Spined Turban Gall Wasp
Antron douglasii
81 observations · iNaturalist
Small White
Pieris rapae
77 observations
Seven-spotted Lady Beetle
Coccinella septempunctata
56 observations
Western Tiger Swallowtail
Papilio rutulus
55 observations
Red Cone Gall Wasp
Feron kingi
55 observations · iNaturalist
Western Honey Bee
Apis mellifera
43 observations
Asian Lady Beetle
Harmonia axyridis
43 observations
Monarch
Danaus plexippus
43 observations
Arizona Mantis
Stagmomantis limbata
39 observations · iNaturalist
California Bumble Bee
Bombus californicus
37 observations · iNaturalist
Purplish Copper
Tharsalea helloides
36 observations · iNaturalist
Honeydew Gall Wasp
Disholcaspis eldoradensis
30 observations · iNaturalist
Blue Dasher
Pachydiplax longipennis
29 observations
Eudryas brevipennis
Eudryas brevipennis
27 observations · iNaturalist
Yellow Wig Gall Wasp
Druon fullawayi
26 observations · iNaturalist
Common Green Darner
Anax junius
25 observations
Woollybear Gall Wasp
Atrusca trimaculosa
21 observations · iNaturalist
Pacific Forktail
Ischnura cervula
20 observations · iNaturalist
Cobalt Milkweed Beetle
Chrysochus cobaltinus
20 observations · iNaturalist
Anise Swallowtail
Papilio zelicaon
19 observations
Convoluted Gall Wasp
Andricus confertus
19 observations · iNaturalist
Painted Lady
Vanessa cardui
17 observations
Mournful Duskywing
Erynnis tristis
17 observations
Convergent Lady Beetle
Hippodamia convergens
16 observations
Western Pondhawk
Erythemis collocata
15 observations · iNaturalist
Familiar Bluet
Enallagma civile
15 observations
Western Spotted Orbweaver
Neoscona oaxacensis
15 observations · iNaturalist
Margined Calligrapher
Toxomerus marginatus
15 observations · iNaturalist
Club Gall Wasp
Xanthoteras clavuloides
15 observations · iNaturalist
Blue-eyed Darner
Rhionaeschna multicolor
14 observations · iNaturalist
European Paper Wasp
Polistes dominula
14 observations
American Lappet Moth
Phyllodesma americana
14 observations · iNaturalist
White-lined Sphinx
Hyles lineata
13 observations · iNaturalist
Orange Sulphur
Colias eurytheme
13 observations
Ash Flower Gall Mite
Aceria fraxiniflora
13 observations · iNaturalist
Large Milkweed Bug
Oncopeltus fasciatus
12 observations
Argentine Ant
Linepithema humile
12 observations
Western Black Widow
Latrodectus hesperus
11 observations
Gray Hairstreak
Strymon melinus
11 observations
Mediterranean Mantis
Iris oratoria
11 observations · iNaturalist
Everlasting Bud Moth
Eublemma minima
11 observations · iNaturalist
Leafhopper Assassin Bug
Zelus renardii
11 observations · iNaturalist
Rosette-Gall Wasp
Andricus wiltzae
11 observations · iNaturalist
Disc Gall Wasp
Feron parmula
11 observations · iNaturalist
Red Admiral
Vanessa atalanta
10 observations
Western Yellowjacket
Vespula pensylvanica
10 observations · iNaturalist

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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