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4,501 species in Indiana Dunes National Park
Acrolophus popeanella
Agabus falli
Agrocybe acericola
Aleuria aurantia
Allium cernuum
Alypia octomaculata
Amaranthus albus
Amaranthus tuberculatus
Ambloplites rupestris
Amblycorypha oblongifolia
Ampelomyia viticola
Amphipyra pyramidoides
Anavitrinella pampinaria
Andrena crataegi
Andrena perplexa
Anodontoides ferussacianus
Anoplius imbellis
Aphodius pedellus
Apteromechus ferratus
Araneus trifolium
Arcyria denudata
Argyrotaenia mariana
Arion subfuscus
Arrenodes minutus
Ascocoryne sarcoides
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