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Species Platyarthrus hoffmannseggii - Ant woodlouse

Isopod - Platyarthrus hoffmannseggii Platyarthrus hoffmannseggii Platyarthrus hoffmannseggii? - Platyarthrus hoffmannseggii Platyarthrus hoffmannseggii
Classification
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 Platyarthridae
Genus Platyarthrus
Species hoffmannseggii (Ant woodlouse)
Synonyms and other taxonomic changes
Synonimies: Itea crassicornis, P. dollfusi, Typhloniscus steinii … Ferenc Vilisics, 14 June, 2007
Life Cycle
Platyarthrus hoffmannseggii is a myrmecophylous isopod, which means it lives in ant nests. Blind and it is not clear why ants don't eat them. It's not the only species from the Platyarthrhus genus, but hoffmannseggi is the most frequent world-wide.
Best wishes, … Ferenc Vilisics, 11 June, 2007
Remarks
Just to be precise with my previous comment (and because it is a new taxon on bugguide.net) I add the taxonomic classification of this species, however it is not very complicated:

Crinochaeta: family Platyarthridae
Genus: Platyarthrus Brandt, 1833
species: hoffmannseggii Brandt, 1833
… Ferenc Vilisics, 14 June, 2007

Non-native. Probably from Europe
Internet References
BNET. Acceptance of two native myrmecophilous species...