Riparian Woodlouse (Hyloniscus riparius)

Riparian Woodlouse, a reference photo — Photo: De Smedt P, Boerave P, Arijs G, Segers S (2018) Woodlice of Belgium: an annotated checklist and bibliography (Isopoda, Oniscidea). In: Hornung E, Taiti S, Szlavecz K (Eds) Isopods in a Changing World. · CC BY 4.0 (licence)

Hyloniscus riparius is a species of woodlouse found in Central and Eastern Europe and subsequently introduced to North America. It is strongly associated with flood plains and can tolerate periods of up to eight weeks submerged under water. In North America, it was first found at St. John's, Newfoundland in 1951, and later in New York, New Jersey, Pennsylvania and North Carolina.

From Wikipedia, under CC BY-SA 4.0.

Is it venomous or poisonous?

We have no record of Riparian Woodlouse being toxic, poisonous or venomous. That is not proof that it is safe. Never eat, touch or handle a wild plant, mushroom or animal on the strength of an identification; ask someone qualified.

Easily confused with

Trichoniscus pusillus
Littorophiloscia richardsonae
Chaetophiloscia sicula
Ligidium gracile
Chaetophiloscia hastata
Halophiloscia couchii

Classification

Kingdom: Animalia
Phylum: Arthropoda
Class: Malacostraca
Order: Isopoda
Family: Trichoniscidae
Genus: Hyloniscus
Species: Hyloniscus riparius

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