Insects & Arthropods of Washington

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

205,573

recent observations

50

species listed

50

insects & arthropods

Naturalists have logged 205,573 research-grade observations across the 50 most-recorded species in Washington. The most frequently seen is the Cross Orbweaver, with 14,876 recorded sightings.

Most-observed insects & arthropods in Washington

Cross Orbweaver

Araneus diadematus

14,876 observations

Western Honey Bee

12,277 observations

Asian Lady Beetle

Harmonia axyridis

9,139 observations

Black-tailed Bumble Bee

Bombus melanopygus

6,448 observations · iNaturalist

Yellow-faced Bumble Bee

Bombus vosnesenskii

6,384 observations · iNaturalist

Woodland Skipper

Ochlodes sylvanoides

6,209 observations · iNaturalist

Fuzzy-Horned Bumble Bee

5,593 observations · iNaturalist

European Paper Wasp

Polistes dominula

5,504 observations

Seven-spotted Lady Beetle

Coccinella septempunctata

5,494 observations

Lorquin's Admiral

Limenitis lorquini

5,288 observations

Giant House Spider

Eratigena duellica

5,273 observations · iNaturalist

Isabella Tiger Moth

Pyrrharctia isabella

5,217 observations

European Mantis

Mantis religiosa

5,208 observations

Zebra Jumping Spider

Salticus scenicus

5,120 observations · iNaturalist

Goldenrod Crab Spider

5,106 observations

Western Conifer Seed Bug

Leptoglossus occidentalis

4,963 observations · iNaturalist

Western Tiger Swallowtail

Papilio rutulus

4,829 observations

Silver-spotted Tiger Moth

Lophocampa argentata

4,764 observations · iNaturalist

4,305 observations

Brown Marmorated Stink Bug

Halyomorpha halys

4,283 observations

Large Yellow Underwing

3,984 observations

Pacific Forktail

Ischnura cervula

3,455 observations · iNaturalist

Spotted Tussock Moth

Lophocampa maculata

3,267 observations

Eight-spotted Skimmer

Libellula forensis

3,257 observations

Bold Jumping Spider

Phidippus audax

3,235 observations

Western Tent Caterpillar Moth

Malacosoma californica

3,207 observations · iNaturalist

Western Boxelder Bug

Boisea rubrolineata

3,121 observations · iNaturalist

Yellow-fronted Bumble Bee

Bombus flavifrons

3,114 observations · iNaturalist

Celastrina echo

2,958 observations · iNaturalist

Vancouver Bumble Bee

Bombus vancouverensis

2,846 observations · iNaturalist

Western Polished Lady Beetle

Cycloneda polita

2,815 observations · iNaturalist

Tyria jacobaeae

2,774 observations · iNaturalist

Bald-faced Hornet

Dolichovespula maculata

2,729 observations

California Tortoiseshell

Nymphalis californica

2,654 observations

Narrow-collared Snail-eating Beetle

Scaphinotus angusticollis

2,600 observations · iNaturalist

Pachydiplax longipennis

2,572 observations

Great Golden Digger Wasp

Sphex ichneumoneus

2,554 observations · iNaturalist

Common Red Soldier Beetle

Rhagonycha fulva

2,536 observations · iNaturalist

Pale Swallowtail

Papilio eurymedon

2,484 observations

2,408 observations

Forficula dentata

2,290 observations · iNaturalist

Bronze Ground Beetle

Carabus nemoralis

2,272 observations · iNaturalist

Orange-legged Furrow Bee

Halictus rubicundus

2,248 observations

Western Yellowjacket

Vespula pensylvanica

2,194 observations · iNaturalist

Brown-lined Looper

Neoalcis californiaria

2,154 observations · iNaturalist

Virginian Tiger Moth

Spilosoma virginica

2,133 observations

California Bumble Bee

Bombus californicus

1,920 observations · iNaturalist

Common Drone Fly

Eristalis tenax

1,878 observations

Triphosa haesitata

1,855 observations · iNaturalist

Convergent Lady Beetle

Hippodamia convergens

1,779 observations

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