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Discussion of 2018 gathering

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa

Photos from the 2010 Workshop in Grinnell, Iowa

Photos from the 2009 gathering in Washington


Family Armadillidiidae - Pillbugs

Armadillidium. What species? - Armadillidium vulgare Armadillidium nasatum or just another vulgare? - Armadillidium nasatum Isopod under Bark - Armadillidium vulgare Armadillidium vulgare pillbug - Armadillidium vulgare Isopoda - Armadillidium vulgare Armadillidium - Armadillidium nasatum Armadillidium vulgare? - Armadillidium vulgare
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)
In Armadillidiidae the tails (uropods) are shorter than the last abdominal segment. (1)
Most other families can not roll into a ball and have tails longer than the last abdominal segment.
In the following image Porcellio scaber is in the family Porcellionidae and Armadillidium nasatum is in the family Armadillidiidae. Note the length of the tails in each.

Two introduced species
Internet References
adult image of Armadillidium nasatum and photos of 2 other species not in Armadillidiidae (Scott Baird, Wright State U., Ohio)
classification and list of worldwide genera (ITIS)
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.