Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Fall Fund Drive


Species Armadillidium nasatum

Pill Bug - Armadillidium nasatum Pill Bug - Armadillidium nasatum pill bug? sow bug? - Armadillidium nasatum Armadillidium nasatum - color variety - Armadillidium nasatum Pillbug - Armadillidium nasatum WI061014 - 007 - Armadillidium nasatum Pillbug - Armadillidium nasatum pillbug - Armadillidium nasatum
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Crustacea (Crustaceans)
Class Malacostraca (Malacostracans)
Superorder Peracarida (Peracarida (Amphipods and Isopods))
Order Isopoda (Isopods)
Suborder Oniscidea (Woodlice)
Infraorder Holoverticata
No Taxon (Orthogonopoda)
No Taxon (Crinocheta)
Family Armadillidiidae (Pillbugs)
Genus Armadillidium
Species nasatum (Armadillidium nasatum)
Synonyms and other taxonomic changes
=mehelyi, nasutum, quadrifrons, sorrentinum, speyeri
Explanation of Names
Author of species is Budde-Lund 1885
To 21 mm
Details here
native to sw. Europe, adventive in the New World(1); in our area, e. NA (PQ-MN-NE to NC-AR) and w. NA (ID-BC-CA)
Grasslands, quarries, gardens, greenhouses.
Life Cycle
They molt one half at a time
Internet References
Works Cited
1.Checklist of the terrestrial isopods of the New World (Crustacea, Isopoda, Oniscidea)
Leistikow A., Wägele J.W. 1999. Rev. Bras. Zool. 16: 1-72.