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Monarch
Danaus plexippus
18,983 observations
Common Eastern Bumble Bee
Bombus impatiens
17,753 observations
Brown-belted Bumble Bee
Bombus griseocollis
10,956 observations
Western Honey Bee
Apis mellifera
8,954 observations
Black Swallowtail
Papilio polyxenes
8,847 observations
Asian Lady Beetle
Harmonia axyridis
7,557 observations
Two-spotted Bumble Bee
Bombus bimaculatus
7,119 observations
Red Admiral
Vanessa atalanta
6,998 observations
Eastern Tiger Swallowtail
Papilio glaucus
6,495 observations
Pearl Crescent
Phyciodes tharos
6,277 observations
Silver-spotted Skipper
Epargyreus clarus
6,214 observations
Common Buckeye
Junonia coenia
5,531 observations
Large Milkweed Bug
Oncopeltus fasciatus
5,362 observations
Small White
Pieris rapae
5,358 observations
Eastern Carpenter Bee
Xylocopa virginica
4,918 observations
Red-spotted Admiral
Limenitis arthemis
4,195 observations
Common Whitetail
Plathemis lydia
4,109 observations
Eastern Tailed-Blue
Everes comyntas
4,084 observations
Red Milkweed Beetle
Tetraopes tetrophthalmus
4,015 observations
Painted Lady
Vanessa cardui
3,941 observations
Goldenrod Soldier Beetle
Chauliognathus pensylvanicus
3,722 observations
Japanese Beetle
Popillia japonica
3,679 observations
Widow Skimmer
Libellula luctuosa
3,675 observations
Ailanthus Webworm Moth
Atteva aurea
3,622 observations
Eastern Pondhawk
Erythemis simplicicollis
3,515 observations
Eastern Forktail
Ischnura verticalis
3,463 observations
Blue Dasher
Pachydiplax longipennis
3,444 observations
Fiery Skipper
Hylephila phyleus
3,397 observations
Black-and-gold Bumble Bee
Bombus auricomus
3,253 observations
Orange Sulphur
Colias eurytheme
3,131 observations
Northern Paper Wasp
Polistes fuscatus
3,124 observations
Hackberry Emperor
Asterocampa celtis
2,984 observations
Bald-faced Hornet
Dolichovespula maculata
2,959 observations
Peck's Skipper
Polites peckius
2,942 observations
Isabella Tiger Moth
Pyrrharctia isabella
2,893 observations
Six-spotted Tiger Beetle
Cicindela sexguttata
2,810 observations
Margined Calligrapher
Toxomerus marginatus
2,785 observations
Chinese Mantis
Tenodera sinensis
2,763 observations
Question Mark
Polygonia interrogationis
2,752 observations
Green Cloverworm Moth
Hypena scabra
2,743 observations
Differential Grasshopper
Melanoplus differentialis
2,716 observations
Zabulon Skipper
Lon zabulon
2,586 observations
Carolina Mantis
Stagmomantis carolina
2,571 observations
Golden Northern Bumble Bee
Bombus fervidus
2,449 observations
Brown Marmorated Stink Bug
Halyomorpha halys
2,448 observations
Pipevine Swallowtail
Battus philenor
2,405 observations
Viceroy
Limenitis archippus
2,293 observations
North American Wheel Bug
Arilus cristatus
2,283 observations
Spicebush Swallowtail
Papilio troilus
2,276 observations
Virginian Tiger Moth
Spilosoma virginica
2,250 observations
Frequently Asked Questions
- The 10 most common insects in Illinois are:
- Monarch (Danaus plexippus)
- Common Eastern Bumble Bee (Bombus impatiens)
- Brown-belted Bumble Bee (Bombus griseocollis)
- Western Honey Bee (Apis mellifera)
- Black Swallowtail (Papilio polyxenes)
- Asian Lady Beetle (Harmonia axyridis)
- Two-spotted Bumble Bee (Bombus bimaculatus)
- Red Admiral (Vanessa atalanta)
- Eastern Tiger Swallowtail (Papilio glaucus)
- Pearl Crescent (Phyciodes tharos)
- The most observed insect in Illinois is Monarch (Danaus plexippus), with 18,983 recorded observations.