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Common Eastern Bumble Bee
Bombus impatiens
15,653 observations
Monarch
Danaus plexippus
15,300 observations
Brown-belted Bumble Bee
Bombus griseocollis
9,401 observations
Western Honey Bee
Apis mellifera
7,689 observations
Black Swallowtail
Papilio polyxenes
7,505 observations
Asian Lady Beetle
Harmonia axyridis
6,631 observations
Red Admiral
Vanessa atalanta
6,255 observations
Two-spotted Bumble Bee
Bombus bimaculatus
6,085 observations
Pearl Crescent
Phyciodes tharos
5,933 observations
Eastern Tiger Swallowtail
Papilio glaucus
5,559 observations
Silver-spotted Skipper
Epargyreus clarus
5,198 observations
Small White
Pieris rapae
4,957 observations
Large Milkweed Bug
Oncopeltus fasciatus
4,740 observations
Common Buckeye
Junonia coenia
4,728 observations
Eastern Carpenter Bee
Xylocopa virginica
4,070 observations
Eastern Tailed-Blue
Cupido comyntas
3,677 observations
Red-spotted Admiral
Limenitis arthemis
3,663 observations
Common Whitetail
Plathemis lydia
3,518 observations
Red Milkweed Beetle
Tetraopes tetrophthalmus
3,464 observations
Painted Lady
Vanessa cardui
3,339 observations
Fiery Skipper
Hylephila phyleus
3,184 observations
Eastern Forktail
Ischnura verticalis
3,071 observations
Eastern Pondhawk
Erythemis simplicicollis
3,038 observations
Widow Skimmer
Libellula luctuosa
2,986 observations
Ailanthus Webworm Moth
Atteva aurea
2,984 observations
Goldenrod Soldier Beetle
Chauliognathus pensylvanicus
2,972 observations
Japanese Beetle
Popillia japonica
2,962 observations
Blue Dasher
Pachydiplax longipennis
2,933 observations
Northern Paper Wasp
Polistes fuscatus
2,887 observations
Orange Sulphur
Colias eurytheme
2,865 observations
Bald-faced Hornet
Dolichovespula maculata
2,708 observations
Black-and-gold Bumble Bee
Bombus auricomus
2,698 observations
Isabella Tiger Moth
Pyrrharctia isabella
2,688 observations
Peck's Skipper
Polites peckius
2,675 observations
Chinese Mantis
Tenodera sinensis
2,511 observations
Differential Grasshopper
Melanoplus differentialis
2,495 observations
Hackberry Emperor
Asterocampa celtis
2,473 observations
Question Mark
Polygonia interrogationis
2,457 observations
Six-spotted Tiger Beetle
Cicindela sexguttata
2,418 observations
Brown Marmorated Stink Bug
Halyomorpha halys
2,320 observations
Zabulon Skipper
Lon zabulon
2,278 observations
Green Cloverworm Moth
Hypena scabra
2,224 observations
Margined Calligrapher
Toxomerus marginatus
2,209 observations
Golden Northern Bumble Bee
Bombus fervidus
2,044 observations
Carolina Mantis
Stagmomantis carolina
2,026 observations
Viceroy
Limenitis archippus
2,014 observations
North American Wheel Bug
Arilus cristatus
2,002 observations
Spicebush Swallowtail
Papilio troilus
1,949 observations
Virginian Tiger Moth
Spilosoma virginica
1,946 observations
Common Green Darner
Anax junius
1,918 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 15,653 recorded observations.