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Genus Armadillidium

Armadillidium. What species? - Armadillidium vulgare Quebec sow - Armadillidium vulgare 290733 woodlouse - Armadillidium vulgare UNK insect - Armadillidium vulgare Armadillidium vulgare Female, Armadillidium vulgare? - Armadillidium vulgare - female Armadillidium - Armadillidium vulgare Armadillidium isopod morph - Armadillidium vulgare
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