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Insects & Arthropods of Acadia National Park

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

6,897
recent observations
50
species listed
50
insects & arthropods

Naturalists have logged 6,897 research-grade observations across the 50 most-recorded species in Acadia. The most frequently seen is the Tricolored Bumble Bee, with 705 recorded sightings.

Most-observed insects & arthropods in Acadia

Tricolored Bumble Bee
Bombus ternarius
705 observations · iNaturalist
Monarch
Danaus plexippus
500 observations
Common Eastern Bumble Bee
Bombus impatiens
301 observations
Asian Lady Beetle
Harmonia axyridis
230 observations
Two-spotted Bumble Bee
Bombus bimaculatus
227 observations
Red-spotted Admiral
Limenitis arthemis
217 observations
Hickory Tussock Moth
Lophocampa caryae
211 observations
American Lady
Vanessa virginiensis
203 observations
Cross Orbweaver
Araneus diadematus
191 observations
Common Drone Fly
Eristalis tenax
183 observations
North American Luna Moth
Actias luna
160 observations
Eastern Calligrapher
Toxomerus geminatus
145 observations
Margined Calligrapher
Toxomerus marginatus
143 observations · iNaturalist
Western Conifer Seed Bug
Leptoglossus occidentalis
139 observations · iNaturalist
Goldenrod Crab Spider
Misumena vatia
136 observations
Calico Pennant
Celithemis elisa
126 observations
Two-striped Grasshopper
Melanoplus bivittatus
122 observations · iNaturalist
Brown-tail Moth
Euproctis chrysorrhoea
121 observations · iNaturalist
Isabella Tiger Moth
Pyrrharctia isabella
120 observations
Japanese Beetle
Popillia japonica
119 observations
Red Admiral
Vanessa atalanta
116 observations
Conifer Swift Moth
Korscheltellus gracilis
111 observations · iNaturalist
Autumn Meadowhawk
Sympetrum vicinum
109 observations
Oriental Beetle
Exomala orientalis
99 observations · iNaturalist
Canadian Tiger Swallowtail
Papilio canadensis
97 observations
Winter Firefly
Photinus corruscus
97 observations · iNaturalist
Ebony Jewelwing
Calopteryx maculata
96 observations
Spongy Moth
Lymantria dispar
95 observations
Variable Dancer
Argia fumipennis
93 observations
Banded Tussock Moth
Halysidota tessellaris
93 observations
Rosy Maple Moth
Dryocampa rubicunda
91 observations · iNaturalist
Perplexing Bumble Bee
Bombus perplexus
90 observations · iNaturalist
Milkweed Tussock Moth
Euchaetes egle
89 observations
White-spotted Sawyer
Monochamus scutellatus
89 observations
Western Honey Bee
Apis mellifera
83 observations
Common Ringlet
Coenonympha california
83 observations
Northern Paper Wasp
Polistes fuscatus
82 observations
Black-and-yellow Lichen Moth
Lycomorpha pholus
82 observations · iNaturalist
Eastern Black Carpenter Ant
Camponotus pennsylvanicus
81 observations
Chalk-fronted Corporal
Ladona julia
80 observations · iNaturalist
Mourning Cloak
Nymphalis antiopa
79 observations
Black-shouldered Drone Fly
Eristalis dimidiata
78 observations · iNaturalist
American Nursery Web Spider
Pisaurina mira
77 observations · iNaturalist
Grass Spiders
Agelenopsis
75 observations · iNaturalist
Transverse-banded Flower Fly
Eristalis transversa
74 observations · iNaturalist
Eastern Tent Caterpillar Moth
Malacosoma americana
74 observations · iNaturalist
Dun Skipper
Euphyes vestris
73 observations
Bronze Ground Beetle
Carabus nemoralis
71 observations · iNaturalist
Great Spangled Fritillary
Argynnis cybele
71 observations · iNaturalist
Small White
Pieris rapae
70 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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