Insects & Arthropods of Iowa
The insects & arthropods most often spotted in Iowa, ranked by recent research-grade observations.
Most-observed insects & arthropods in Iowa
Common Eastern Bumble Bee
Bombus impatiens
4,689 observations
Monarch
Danaus plexippus
4,310 observations
Brown-belted Bumble Bee
Bombus griseocollis
3,120 observations
Asian Lady Beetle
Harmonia axyridis
2,220 observations
Red Admiral
Vanessa atalanta
1,949 observations
Western Honey Bee
Apis mellifera
1,863 observations
Black Swallowtail
Papilio polyxenes
1,631 observations
Japanese Beetle
Popillia japonica
1,575 observations
Eastern Tiger Swallowtail
Papilio glaucus
1,543 observations
Silver-spotted Skipper
Epargyreus clarus
1,513 observations
Goldenrod Soldier Beetle
Chauliognathus pensylvanicus
1,499 observations · iNaturalist
Painted Lady
Vanessa cardui
1,428 observations
Two-spotted Bumble Bee
Bombus bimaculatus
1,246 observations
Differential Grasshopper
Melanoplus differentialis
1,234 observations
Bold Jumping Spider
Phidippus audax
1,202 observations
Small White
Pieris rapae
1,155 observations
Isabella Tiger Moth
Pyrrharctia isabella
1,088 observations
Pearl Crescent
Phyciodes tharos
1,078 observations
Red Milkweed Beetle
Tetraopes tetrophthalmus
1,023 observations
Hackberry Emperor
Asterocampa celtis
1,021 observations
Chinese Mantis
Tenodera sinensis
1,011 observations
American Bumble Bee
Bombus pensylvanicus
979 observations
Carolina Mantis
Stagmomantis carolina
946 observations
White-lined Sphinx
Hyles lineata
922 observations · iNaturalist
Northern Paper Wasp
Polistes fuscatus
915 observations
Black-and-gold Bumble Bee
Bombus auricomus
908 observations
Chickweed Geometer Moth
Haematopis grataria
846 observations · iNaturalist
Eastern Tailed-Blue
Cupido comyntas
839 observations · iNaturalist
Large Milkweed Bug
Oncopeltus fasciatus
830 observations
Great Spangled Fritillary
Argynnis cybele
764 observations · iNaturalist
Eastern Comma
Polygonia comma
729 observations
Red-spotted Admiral
Limenitis arthemis
727 observations
Margined Leatherwing Beetle
Chauliognathus marginatus
725 observations · iNaturalist
Margined Calligrapher
Toxomerus marginatus
724 observations · iNaturalist
Eastern Boxelder Bug
Boisea trivittata
718 observations
Common Buckeye
Junonia coenia
716 observations
Brown Marmorated Stink Bug
Halyomorpha halys
702 observations
Yellow Garden Spider
Argiope aurantia
693 observations
Ailanthus Webworm Moth
Atteva aurea
691 observations · iNaturalist
Widow Skimmer
Libellula luctuosa
689 observations
Huron Skipper
Atalopedes huron
685 observations · iNaturalist
Virginian Tiger Moth
Spilosoma virginica
681 observations
Spotted Cucumber Beetle
Diabrotica undecimpunctata
646 observations
Tan Jumping Spider
Platycryptus undatus
635 observations · iNaturalist
Eastern Carpenter Bee
Xylocopa virginica
628 observations
Common Whitetail
Plathemis lydia
570 observations
Orange Sulphur
Colias eurytheme
556 observations
American Dog Tick
Dermacentor variabilis
542 observations
Ebony Jewelwing
Calopteryx maculata
536 observations
Eastern Black Carpenter Ant
Camponotus pennsylvanicus
523 observations