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Home » Guide » Arthropods (Arthropoda) » Crustaceans (Crustacea) » Malacostracans (Malacostraca) » Marsupial Crustaceans (Peracarida) » Isopods (Isopoda) » Scutocoxifera » Woodlice (Oniscidea) » Holoverticata » Orthogonopoda » Crinocheta » European Pillbugs (Armadillidiidae) » Armadillidium

Genus Armadillidium

Classification · Numbers · Identification · Range · Internet References · Works Cited
unknown - Armadillidium nasatum Armadillidium - Armadillidium vulgare Armadillidium vulgare Armadillidium vulgare armadilldium vulgar - Armadillidium vulgare pill millipide or pill bug? - Armadillidium vulgare Armadillo Woodlice - Dorsal - Armadillidium nasatum Pill Bug ID? - Armadillidium
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Crustacea (Crustaceans)
Class Malacostraca (Malacostracans)
Superorder Peracarida (Marsupial Crustaceans)
Order Isopoda (Isopods)
No Taxon (Scutocoxifera)
Suborder Oniscidea (Woodlice)
Infraorder Holoverticata
No Taxon (Orthogonopoda)
No Taxon (Crinocheta)
Family Armadillidiidae (European Pillbugs)
Genus Armadillidium
Numbers
2 species in North America, both introduced
over 300 species in Europe, most concentrated around the Mediterranean
Identification

In A. nasatum (left), the telson has a rounded tip. In A. vulgare (right), the telson is truncate, more trapezoidal.


A. vulgare, on the left, rolls into a perfect ball, while the tail of A. nasatum, on the right, sticks out when it rolls into an imperfect ball.


In A. vulgare (left), the scutellum barely projects. In A. nasatum (right), the scutellum projects.

For comparison:
A. nasatum; A. vulgare:


(1)(2)

Variation in A. nasatum:


Variation in A. vulgare:
Range
Worldwide, originally from Europe.
Internet References
Discover Life
Works Cited
1.Armadillidium vulgare - Smithsonian National Museum of Natural History
2.Armadillidium nasatum- Smithsonian National Museum of Natural History
Contributed by Lynette Elliott on 23 January, 2006 - 9:45am
Additional contributions by Beatriz Moisset, Ted Kropiewnicki, edanko, Astrobirder
Last updated 19 August, 2021 - 12:31pm

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