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Common Eastern Bumble Bee
Bombus impatiens
15,861 observations
Monarch
Danaus plexippus
15,581 observations
Brown-belted Bumble Bee
Bombus griseocollis
9,588 observations
Western Honey Bee
Apis mellifera
7,887 observations
Black Swallowtail
Papilio polyxenes
7,747 observations
Asian Lady Beetle
Harmonia axyridis
6,838 observations
Red Admiral
Vanessa atalanta
6,395 observations
Two-spotted Bumble Bee
Bombus bimaculatus
6,368 observations
Pearl Crescent
Phyciodes tharos
5,996 observations
Eastern Tiger Swallowtail
Papilio glaucus
5,712 observations
Silver-spotted Skipper
Epargyreus clarus
5,307 observations
Small White
Pieris rapae
5,000 observations
Common Buckeye
Junonia coenia
4,763 observations
Large Milkweed Bug
Oncopeltus fasciatus
4,752 observations
Eastern Carpenter Bee
Xylocopa virginica
4,253 observations
Red-spotted Admiral
Limenitis arthemis
3,746 observations
Eastern Tailed-Blue
Cupido comyntas
3,698 observations
Common Whitetail
Plathemis lydia
3,671 observations
Red Milkweed Beetle
Tetraopes tetrophthalmus
3,550 observations
Painted Lady
Vanessa cardui
3,380 observations
Eastern Forktail
Ischnura verticalis
3,195 observations
Fiery Skipper
Hylephila phyleus
3,187 observations
Eastern Pondhawk
Erythemis simplicicollis
3,091 observations
Widow Skimmer
Libellula luctuosa
3,051 observations
Ailanthus Webworm Moth
Atteva aurea
3,004 observations
Blue Dasher
Pachydiplax longipennis
2,994 observations
Goldenrod Soldier Beetle
Chauliognathus pensylvanicus
2,992 observations
Japanese Beetle
Popillia japonica
2,971 observations
Northern Paper Wasp
Polistes fuscatus
2,924 observations
Orange Sulphur
Colias eurytheme
2,887 observations
Isabella Tiger Moth
Pyrrharctia isabella
2,775 observations
Black-and-gold Bumble Bee
Bombus auricomus
2,764 observations
Bald-faced Hornet
Dolichovespula maculata
2,745 observations
Six-spotted Tiger Beetle
Cicindela sexguttata
2,703 observations
Peck's Skipper
Polites peckius
2,694 observations
Question Mark
Polygonia interrogationis
2,576 observations
Chinese Mantis
Tenodera sinensis
2,558 observations
Hackberry Emperor
Asterocampa celtis
2,547 observations
Differential Grasshopper
Melanoplus differentialis
2,521 observations
Brown Marmorated Stink Bug
Halyomorpha halys
2,411 observations
Margined Calligrapher
Toxomerus marginatus
2,344 observations
Zabulon Skipper
Lon zabulon
2,316 observations
Green Cloverworm Moth
Hypena scabra
2,251 observations
Golden Northern Bumble Bee
Bombus fervidus
2,109 observations
Virginian Tiger Moth
Spilosoma virginica
2,049 observations
North American Wheel Bug
Arilus cristatus
2,047 observations
Viceroy
Limenitis archippus
2,047 observations
Carolina Mantis
Stagmomantis carolina
2,045 observations
Spicebush Swallowtail
Papilio troilus
2,008 observations
Common Green Darner
Anax junius
1,949 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 15,861 recorded observations.