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  1. Illinois DNR
  2. Conservation
  3. Natural Heritage

Endangered and Threatened Invertebrates

Common name Species Status Taxa
Iowa Pleistocene Snail Discus macclintocki Endangered Snail
Hydrobiid Cave Snail Fontigens antroecetes Endangered Snail
​Onyx Rocksnail ​Leptoxis praerosa Endangered Snail
Shawnee Rocksnail Lithasia obovata Endangered Snail
Spectaclecase Cumberlandia monodonta Endangered Mussel
Fanshell Cyprogenia stegaria Endangered Mussel
​Elephant-ear ​Elliptio crassidens ​Endangered ​Mussel
Northern Riffleshell Epioblasma rangiana Endangered Mussel
Snuffbox Epioblasma triquetra Endangered Mussel
​Ebonyshell ​Fusconaia ebena ​Endangered ​Mussel
Pink Mucket Lampsilis abrupta Endangered Mussel
Wavy-rayed Lampmussel Lampsilis fasciola Endangered Mussel
Higgins Eye Lampsilis higginsii Endangered Mussel
​Scaleshell ​Leptodea leptodon ​Endangered ​Mussel
Orangefoot Pimpleback Plethobasus cooperianus Endangered Mussel
Sheepnose Plethobasus cyphyus Endangered Mussel
Clubshell Pleurobema clava Endangered Mussel
Ohio Pigtoe Pleurobema cordatum Endangered Mussel
Fat Pocketbook Potamilus capax Endangered Mussel
Kidneyshell Ptychobranchus fasciolaris Endangered Mussel
Rabbitsfoot Quadrula cylindrica Endangered Mussel
Salamander Mussel Simpsonaias ambigua Endangered Mussel
Purple Lilliput Toxolasma lividus Endangered Mussel
Rainbow Villosa iris Endangered Mussel
Isopod Caecidotea lesliei Endangered Crustacean
Anomalous Spring Amphipod Crangonyx anomalus Endangered Crustacean
Packard's Cave Amphipod Crangonyx packardi Endangered Crustacean
Illinois Cave Amphipod Gammarus acherondytes Endangered Crustacean
Indiana Crayfish Orconectes indianensis Endangered Crustacean
Kentucky Crayfish Orconectes kentuckiensis Endangered Crustacean
Shrimp Crayfish Orconectes lancifer Endangered Crustacean
Bigclaw Crayfish Orconectes placidus Endangered Crustacean
Iowa Amphipod Stygobromus iowae Endangered Crustacean
Common Striped Scorpion Centruroides vittatus Endangered Scorpion
Hine's Emerald Dragonfly Somatochlora hineana Endangered Dragonfly
Madonna Cave Springtail Pygmarrhopalites madonnensis Endangered Springtail
Robust Springfly Diploperla robusta Endangered Stonefly
Central Forestfly Prostoia completa Endangered Stonefly
Leafhopper Athysanella incongrua Endangered Leafhopper
Swamp Metalmark Calephelis mutica Endangered Butterflies and moths
​Cobweb Skipper ​Hesperia metea ​Endangered ​Butterflies and moths
Ottoe Skipper Hesperia ottoe Endangered Butterflies and moths
Hoary Elfin Incisalia polios Endangered Butterflies and moths
Karner Blue Lycaeides melissa samuelis Endangered Butterflies and moths
Slippershell Alasmidonta viridis Threatened Mussel
Purple Wartyback Cyclonaias tuberculata Threatened Mussel
Butterfly Ellipsaria lineolata Threatened Mussel
Spike Elliptio dilatata Threatened Mussel
Black Sandshell Ligumia recta Threatened Mussel
Little Spectaclecase Villosa lienosa Threatened Mussel
Elfin Skimmer Nannothemis bella Threatened Dragonfly
Redveined Prairie Leafhopper Aflexia rubranura Threatened Leafhopper
Regal Fritillary Speyeria idalia Threatened Butterflies and moths
Eryngium Stem Borer ​Papaipema eryngii Threatened ​Butterflies and moths