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Insects & Arthropods of Delaware

The insects & arthropods most often spotted in Delaware, ranked by recent research-grade observations.

50,761
recent observations
50
species listed
50
insects & arthropods

Naturalists have logged 50,761 research-grade observations across the 50 most-recorded species in Delaware. The most frequently seen is the Asian Lady Beetle, with 2,728 recorded sightings.

Most-observed insects & arthropods in Delaware

Asian Lady Beetle
Harmonia axyridis
2,728 observations
Monarch
Danaus plexippus
2,492 observations
Eastern Tiger Swallowtail
Papilio glaucus
1,859 observations
Blue Dasher
Pachydiplax longipennis
1,844 observations
Eastern Pondhawk
Erythemis simplicicollis
1,812 observations
Spotted Lanternfly
Lycorma delicatula
1,795 observations
Fragile Forktail
Ischnura posita
1,765 observations · iNaturalist
Huron Skipper
Atalopedes huron
1,486 observations · iNaturalist
Common Whitetail
Plathemis lydia
1,451 observations
Common Eastern Bumble Bee
Bombus impatiens
1,403 observations
Western Honey Bee
Apis mellifera
1,326 observations
Black Swallowtail
Papilio polyxenes
1,191 observations
Slaty Skimmer
Libellula incesta
1,141 observations · iNaturalist
Common Buckeye
Junonia coenia
1,098 observations
Silver-spotted Skipper
Epargyreus clarus
1,080 observations
Ebony Jewelwing
Calopteryx maculata
1,042 observations
Eastern Carpenter Bee
Xylocopa virginica
1,024 observations
Red-spotted Admiral
Limenitis arthemis
962 observations
Green Cloverworm Moth
Hypena scabra
945 observations · iNaturalist
Seaside Dragonlet
Erythrodiplax berenice
937 observations · iNaturalist
Carolina Mantis
Stagmomantis carolina
919 observations
Large Milkweed Bug
Oncopeltus fasciatus
909 observations
Small White
Pieris rapae
896 observations
Zabulon Skipper
Lon zabulon
867 observations · iNaturalist
Eastern Amberwing
Perithemis tenera
835 observations · iNaturalist
Spicebush Swallowtail
Papilio troilus
817 observations
Pearl Crescent
Phyciodes tharos
812 observations
Eastern Tent Caterpillar Moth
Malacosoma americana
811 observations · iNaturalist
Eastern Tailed-Blue
Everes comyntas
803 observations
Variegated Fritillary
Euptoieta claudia
796 observations
North American Wheel Bug
Arilus cristatus
767 observations
Bold Jumping Spider
Phidippus audax
748 observations
Oriental Beetle
Exomala orientalis
691 observations · iNaturalist
Yellow Garden Spider
Argiope aurantia
686 observations
Red Admiral
Vanessa atalanta
685 observations
Ailanthus Webworm Moth
Atteva aurea
670 observations · iNaturalist
Red Milkweed Beetle
Tetraopes tetrophthalmus
670 observations
Citrus Flatid Planthopper
Metcalfa pruinosa
669 observations · iNaturalist
Japanese Beetle
Popillia japonica
667 observations
Isabella Tiger Moth
Pyrrharctia isabella
660 observations
Blue-winged Scoliid Wasp
Scolia dubia
640 observations · iNaturalist
Bicolored Sallow
Sunira bicolorago
614 observations · iNaturalist
Chinese Mantis
Tenodera sinensis
612 observations
Horned Passalus Beetle
Odontotaenius disjunctus
609 observations
Seven-spotted Lady Beetle
Coccinella septempunctata
607 observations
Margined Leatherwing Beetle
Chauliognathus marginatus
602 observations · iNaturalist
Tulip-tree Beauty
Epimecis hortaria
598 observations · iNaturalist
Tan Jumping Spider
Platycryptus undatus
590 observations · iNaturalist
Widow Skimmer
Libellula luctuosa
568 observations
North American Luna Moth
Actias luna
562 observations

Built from recent research-grade iNaturalist observations. Identifications are community-sourced and may occasionally be wrong, and the ranking reflects where people record and photograph wildlife, so a species seen often here is not necessarily rare elsewhere. Some plants and animals are only out in certain seasons. Treat this as a lively snapshot of what people are finding, not a formal checklist.

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