Insects & Arthropods of Pennsylvania
The insects & arthropods most often spotted in Pennsylvania, ranked by recent research-grade observations.
309,396
recent observations
50
species listed
50
insects & arthropods
Naturalists have logged 309,396 research-grade observations across the 50 most-recorded species in Pennsylvania. The most frequently seen is the Spotted Lanternfly, with 22,275 recorded sightings.
Most-observed insects & arthropods in Pennsylvania
Spotted Lanternfly
Lycorma delicatula
22,275 observations · iNaturalist
Monarch
Danaus plexippus
18,346 observations
Common Eastern Bumble Bee
Bombus impatiens
16,500 observations
Asian Lady Beetle
Harmonia axyridis
15,049 observations
Western Honey Bee
Apis mellifera
13,321 observations
Eastern Tiger Swallowtail
Papilio glaucus
12,602 observations
Eastern Carpenter Bee
Xylocopa virginica
8,739 observations
Silver-spotted Skipper
Epargyreus clarus
7,839 observations
Huron Skipper
Atalopedes huron
7,739 observations · iNaturalist
Small White
Pieris rapae
7,369 observations
Isabella Tiger Moth
Pyrrharctia isabella
7,342 observations
Red-spotted Admiral
Limenitis arthemis
6,959 observations
Black Swallowtail
Papilio polyxenes
6,707 observations
Hickory Tussock Moth
Lophocampa caryae
6,641 observations
Spicebush Swallowtail
Papilio troilus
6,006 observations
Eastern Tent Caterpillar Moth
Malacosoma americana
5,604 observations · iNaturalist
Bold Jumping Spider
Phidippus audax
5,392 observations
Zabulon Skipper
Lon zabulon
5,221 observations · iNaturalist
Great Spangled Fritillary
Argynnis cybele
5,127 observations · iNaturalist
Orchard Orbweaver
Leucauge venusta
5,125 observations
Spongy Moth
Lymantria dispar
4,901 observations
Japanese Beetle
Popillia japonica
4,820 observations
Chinese Mantis
Tenodera sinensis
4,819 observations
Brown-belted Bumble Bee
Bombus griseocollis
4,785 observations
Red Admiral
Vanessa atalanta
4,764 observations
Large Milkweed Bug
Oncopeltus fasciatus
4,750 observations
Red Milkweed Beetle
Tetraopes tetrophthalmus
4,699 observations
Pearl Crescent
Phyciodes tharos
4,595 observations
Brown Marmorated Stink Bug
Halyomorpha halys
4,343 observations
Common Whitetail
Plathemis lydia
4,299 observations
Eastern Boxelder Bug
Boisea trivittata
4,227 observations
Ebony Jewelwing
Calopteryx maculata
4,210 observations
Peck's Skipper
Polites peckius
4,049 observations · iNaturalist
Banded Tussock Moth
Halysidota tessellaris
3,997 observations
Eastern Tailed-Blue
Everes comyntas
3,987 observations
Blue Dasher
Pachydiplax longipennis
3,914 observations
Bald-faced Hornet
Dolichovespula maculata
3,845 observations
North American Wheel Bug
Arilus cristatus
3,807 observations
Giant Leopard Moth
Hypercompe scribonia
3,788 observations · iNaturalist
Polyphemus Moth
Antheraea polyphemus
3,708 observations
Oriental Beetle
Exomala orientalis
3,555 observations · iNaturalist
Margined Calligrapher
Toxomerus marginatus
3,537 observations · iNaturalist
Ailanthus Webworm Moth
Atteva aurea
3,472 observations · iNaturalist
Milkweed Tussock Moth
Euchaetes egle
3,352 observations
Two-spotted Bumble Bee
Bombus bimaculatus
3,334 observations
Tan Jumping Spider
Platycryptus undatus
3,326 observations · iNaturalist
Eastern Black Carpenter Ant
Camponotus pennsylvanicus
3,259 observations
Northern Paper Wasp
Polistes fuscatus
3,222 observations
Dark Fishing Spider
Dolomedes tenebrosus
3,080 observations
North American Luna Moth
Actias luna
3,049 observations
Insects & Arthropods in nearby places
Out spotting insects & arthropods in Pennsylvania?
Take Huck with you. Identify any insects & arthropod you find in seconds and build your collection.
Get HuckLove insects & arthropods? Get Huck field notes
Spotting tips, new species, and the best of what people are finding in the wild - straight to your inbox.