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Insects & Arthropods of Seattle, Washington

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

58,921
recent observations
50
species listed
50
insects & arthropods

Naturalists have logged 58,921 research-grade observations across the 50 most-recorded species near Seattle. The most frequently seen is the Cross Orbweaver, with 6,443 recorded sightings.

Most-observed insects & arthropods near Seattle

Cross Orbweaver
Araneus diadematus
6,443 observations
Western Honey Bee
Apis mellifera
4,286 observations
Asian Lady Beetle
Harmonia axyridis
3,024 observations
Fuzzy-Horned Bumble Bee
Bombus mixtus
2,188 observations · iNaturalist
Black-tailed Bumble Bee
Bombus melanopygus
2,009 observations · iNaturalist
Giant House Spider
Eratigena duellica
1,958 observations · iNaturalist
Brown Marmorated Stink Bug
Halyomorpha halys
1,955 observations
Western Conifer Seed Bug
Leptoglossus occidentalis
1,637 observations · iNaturalist
Great Golden Digger Wasp
Sphex ichneumoneus
1,479 observations · iNaturalist
European Paper Wasp
Polistes dominula
1,427 observations
Zebra Jumping Spider
Salticus scenicus
1,386 observations · iNaturalist
Common Red Soldier Beetle
Rhagonycha fulva
1,327 observations · iNaturalist
Woodland Skipper
Ochlodes sylvanoides
1,289 observations · iNaturalist
Isabella Tiger Moth
Pyrrharctia isabella
1,275 observations
Goldenrod Crab Spider
Misumena vatia
1,211 observations
Western Tiger Swallowtail
Papilio rutulus
1,108 observations
Southern Oak Bush-cricket
Meconema meridionale
1,078 observations · iNaturalist
Orange-legged Furrow Bee
Halictus rubicundus
1,075 observations
Eight-spotted Skimmer
Libellula forensis
1,071 observations
Yellow-faced Bumble Bee
Bombus vosnesenskii
1,048 observations · iNaturalist
Silver-spotted Tiger Moth
Lophocampa argentata
1,046 observations · iNaturalist
Blue Dasher
Pachydiplax longipennis
1,039 observations
Small White
Pieris rapae
972 observations
Pacific Forktail
Ischnura cervula
921 observations · iNaturalist
Lorquin's Admiral
Limenitis lorquini
851 observations
Seven-spotted Lady Beetle
Coccinella septempunctata
847 observations
Large Yellow Underwing
Noctua pronuba
804 observations
Bald-faced Hornet
Dolichovespula maculata
764 observations
Western Polished Lady Beetle
Cycloneda polita
760 observations · iNaturalist
Eurasian Drone Fly
Eristalis arbustorum
692 observations · iNaturalist
Oblong Woolcarder Bee
Anthidium oblongatum
688 observations · iNaturalist
Brown-lined Looper
Neoalcis californiaria
678 observations · iNaturalist
Blue-green Sharpshooter
Graphocephala atropunctata
670 observations · iNaturalist
California Bumble Bee
Bombus californicus
657 observations · iNaturalist
Omnivorous Looper
Sabulodes aegrotata
647 observations · iNaturalist
Bronze Ground Beetle
Carabus nemoralis
644 observations · iNaturalist
Narrow-collared Snail-eating Beetle
Scaphinotus angusticollis
641 observations · iNaturalist
Yellow-fronted Bumble Bee
Bombus flavifrons
630 observations · iNaturalist
American Yellowjacket
Vespula alascensis
628 observations · iNaturalist
Mouse Spider
Scotophaeus blackwalli
625 observations · iNaturalist
False Black Widow
Steatoda grossa
612 observations
Madrone Skin Miner
Marmara arbutiella
588 observations · iNaturalist
Long-bodied Cellar Spider
Pholcus phalangioides
570 observations
Western Earwig
Forficula dentata
556 observations · iNaturalist
Cinnabar Moth
Tyria jacobaeae
548 observations · iNaturalist
Tissue Moth
Triphosa haesitata
544 observations · iNaturalist
Western Pondhawk
Erythemis collocata
532 observations · iNaturalist
Twenty-spotted Lady Beetle
Psyllobora vigintimaculata
517 observations · iNaturalist
Eurasian Running Crab Spider
Philodromus dispar
514 observations · iNaturalist
Cardinal Meadowhawk
Sympetrum illotum
462 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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