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Common woodlouse

Oniscus asellus


Shiny and relatively large, black-brown arthropod speckled with light spots. These areas on the shell contain calcium stores. I only saw it for a moment before it retreated beneath the leaf litter.


Found under a decaying log in North Mount Loretto State Forest.


Native to Britain, Ukraine and some other areas of Europe. Introduced to the Americas.

2 Species ID Suggestions

common woodlouse
Oniscus asellus Oniscus asellus - Wikipedia
Brian38 a year ago
Common woodlouse
Oniscus asellus Oniscus asellus - Wikipedia

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mauna Kunzah
mauna Kunzah a year ago

Thanks, Tukup. I was fortunate to catch a glimpse of it! I’ve never seen one before.

Tukup a year ago

Quick camera action Mauna. Nice catch.

mauna Kunzah
mauna Kunzah a year ago

Thank you Brian and Debabrata for the ID!

DebabrataDeb a year ago

It's Centipede typr

mauna Kunzah
Spotted by
mauna Kunzah

NYC, New York, USA

Spotted on Apr 21, 2019
Submitted on Apr 28, 2019

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