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Common Eastern Bumble Bee
Bombus impatiens
15,899 observations
Monarch
Danaus plexippus
15,709 observations
Brown-belted Bumble Bee
Bombus griseocollis
9,661 observations
Western Honey Bee
Apis mellifera
7,960 observations
Black Swallowtail
Papilio polyxenes
7,818 observations
Asian Lady Beetle
Harmonia axyridis
6,945 observations
Red Admiral
Vanessa atalanta
6,464 observations
Two-spotted Bumble Bee
Bombus bimaculatus
6,440 observations
Pearl Crescent
Phyciodes tharos
6,007 observations
Eastern Tiger Swallowtail
Papilio glaucus
5,726 observations
Silver-spotted Skipper
Epargyreus clarus
5,337 observations
Small White
Pieris rapae
5,023 observations
Common Buckeye
Junonia coenia
4,793 observations
Large Milkweed Bug
Oncopeltus fasciatus
4,763 observations
Eastern Carpenter Bee
Xylocopa virginica
4,272 observations
Red-spotted Admiral
Limenitis arthemis
3,765 observations
Common Whitetail
Plathemis lydia
3,759 observations
Eastern Tailed-Blue
Cupido comyntas
3,717 observations
Red Milkweed Beetle
Tetraopes tetrophthalmus
3,657 observations
Painted Lady
Vanessa cardui
3,400 observations
Eastern Forktail
Ischnura verticalis
3,240 observations
Fiery Skipper
Hylephila phyleus
3,188 observations
Eastern Pondhawk
Erythemis simplicicollis
3,125 observations
Widow Skimmer
Libellula luctuosa
3,119 observations
Blue Dasher
Pachydiplax longipennis
3,048 observations
Ailanthus Webworm Moth
Atteva aurea
3,011 observations
Japanese Beetle
Popillia japonica
3,000 observations
Goldenrod Soldier Beetle
Chauliognathus pensylvanicus
2,992 observations
Northern Paper Wasp
Polistes fuscatus
2,936 observations
Orange Sulphur
Colias eurytheme
2,895 observations
Black-and-gold Bumble Bee
Bombus auricomus
2,786 observations
Isabella Tiger Moth
Pyrrharctia isabella
2,783 observations
Bald-faced Hornet
Dolichovespula maculata
2,747 observations
Six-spotted Tiger Beetle
Cicindela sexguttata
2,741 observations
Peck's Skipper
Polites peckius
2,710 observations
Hackberry Emperor
Asterocampa celtis
2,621 observations
Question Mark
Polygonia interrogationis
2,593 observations
Chinese Mantis
Tenodera sinensis
2,565 observations
Differential Grasshopper
Melanoplus differentialis
2,521 observations
Margined Calligrapher
Toxomerus marginatus
2,428 observations
Brown Marmorated Stink Bug
Halyomorpha halys
2,414 observations
Zabulon Skipper
Lon zabulon
2,338 observations
Green Cloverworm Moth
Hypena scabra
2,253 observations
Golden Northern Bumble Bee
Bombus fervidus
2,118 observations
North American Wheel Bug
Arilus cristatus
2,084 observations
Virginian Tiger Moth
Spilosoma virginica
2,055 observations
Carolina Mantis
Stagmomantis carolina
2,053 observations
Viceroy
Limenitis archippus
2,052 observations
Spicebush Swallowtail
Papilio troilus
2,023 observations
Red-banded Leafhopper
Graphocephala coccinea
2,014 observations
Frequently Asked Questions
- The 10 most common insects in Illinois are:
- Common Eastern Bumble Bee (Bombus impatiens)
- Monarch (Danaus plexippus)
- Brown-belted Bumble Bee (Bombus griseocollis)
- Western Honey Bee (Apis mellifera)
- Black Swallowtail (Papilio polyxenes)
- Asian Lady Beetle (Harmonia axyridis)
- Red Admiral (Vanessa atalanta)
- Two-spotted Bumble Bee (Bombus bimaculatus)
- Pearl Crescent (Phyciodes tharos)
- Eastern Tiger Swallowtail (Papilio glaucus)
- The most observed insect in Illinois is Common Eastern Bumble Bee (Bombus impatiens), with 15,899 recorded observations.