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Family Armadillidiidae - European Pillbugs

Pillbug - Armadillidium vulgare Woodlouse IMG_4871 - Armadillidium vulgare What is this creepy crawly thing? It's small. - Armadillidium vulgare Woodlice - Armadillidium vulgare Pillbug - Armadillidium vulgare ??? - Armadillidium vulgare woodlouse - Armadillidium vulgare isopod - 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)
Explanation of Names
Armadillidiidae Brandt 1833
Numbers
2 species in a single genus in our area (both introduced), hundreds of spp. in ~20 genera total
Identification
uropods shorter than the last abdominal segment(1)
American species of Armadillidae (note the number of d’s) have hourglass-shaped telson, while Armadillidium has triangular- or trapezoidal-shaped telsons
Most other families can not roll into a ball and have tails longer than the last abdominal segment.
Porcellio scaber next to Armadillidium nasatum Note the length of the uropods
Range
Native to W Palaeactic, 3 spp. introduced worldwide
Works Cited
1.Spiders and Their Kin: A Golden Guide from St. Martin's Press
Herbert W. Levi, Lorna R. Levi, Nicholas Strekalovsky. 2001. St. Martin's Press.